The door is open.
Where have they gone?
No idea.
Where could they have gone? No one is around here.
The party is on.
They must be somewhere here. I'll check inside the room.
All right, I'll check near the swimming pool.
Viren, sir!
Sir, I bought the food.
Sarika.
Pull yourself together.
I've called CID.
They should be here any moment. They'll handle everything.
Okay?
CID.
Did you make the call?
Yes, sir.
I'm terrified, ma'am. Please let me go home.
Where's the body?
Three persons burned so badly and died.
But nothing near them is burnt.
Everything looks untouched.
It really is weird.
Fire did not touch anything here except these three.
Looks like they were partying before the incident.
Sir, these catering people may be able to tell us something.
Who placed the food order?
Viren did,
yesterday before check-in.
So, you last saw these three yesterday?
This morning at 9:00 am.
Yesterday, they ordered breakfast, and we came to deliver it today.
We left around 10:00 am.
So, you saw them alive
at 10:00 am today.
Yes, sir.
But at 1:00 pm, Viren sir
sent me an audio message.
Nitin, bring lunch and drinks by 3:00 pm.
And make sure the drinks are chilled, okay?
Sir, when we arrived with lunch at 3:00 pm,
the door was already open.
When we entered,
we found those three in this condition.
This means the incident happened between 1:00 pm and 3:00 pm.
Sir, all their bags, wallets, and laptops are untouched.
There's no sign of theft.
Whoever broke in didn't come to steal.
Looking at the condition
of the bodies, it's clear the killer hated them a lot.
Purvi, have you checked their phones?
Yes, sir. All three phones are completely burnt.
There must be CCTV cameras in this villa.
No, sir. There are no CCTV cameras inside the villa.
But there's one at the entrance gate.
Then, get the footage.
Let's see who came here between 1:00 and 3:00 pm.
Pankaj, what happened?
Hey!
Don't even ask, sir.
First, the waves were so high that
I got drenched despite being in the boat.
Second, none of the boatmen wanted to take me.
They all said I was too heavy.
What could I say? They were so rude to me.
I had to give them 200 rupees to bring me here.
Yes, it's actually difficult to get to this island.
How many ways are there to come here?
There's no certainty about the waves here.
They keep fluctuating.
There's only one safe way that
even the local fishermen use.
Then someone must have seen
the killer arriving here.
Pankaj, interrogate the local fishermen.
I'll ask the one I gave 200 rupees to.
I'll ask him.
Purvi, ask the villa caretaker about these three.
Also, arrange to send the bodies to the forensic lab.
- Okay. - You guys,
don't relax too much.
You'll remain under our radar.
Ask us before leaving the city. Got it?
Daya,
we'll have to
thoroughly search the entire island.
Boss, there's no doubt
these three died in the fire.
Yes, sir, they had no chance of survival.
90% of their bodies were burned.
But the reason they burned is shocking.
What happened to them?
Their bodies weren't burned using matches or lighters.
Instead, they were exposed to a pyrophoric chemical, triethylomate.
Boss, this chemical
ignites upon contact with air.
That's why we didn't find burn marks
on anything other than the bodies.
Exactly! And yes,
this chemical isn't easy to acquire.
Oh!
The killer went to great lengths to execute this murder.
But killing
three people at once
isn't easy.
They must've been unconscious first.
Sir, it seems the water was very cold.
Cold?
When I boarded the boat, I was fine,
but by the time I got off, I was freezing.
Did you find anything in the CCTV footage? Check it.
Sir.
At 9:00 am
these two catering staff entered the villa.
Did you see?
At 10:00 am
they left after serving breakfast,
and Viren is also visible.
This means they're telling the truth.
The victims were alive at 10:00 am.
What happened after that?
Check between 10:00 and 3:00.
These people seemed fond of Chinese and Japanese food.
I found traces of sushi and noodles in their stomachs.
They also drank alcohol and tea.
They consumed all this a couple of hours before their deaths.
Sir, according to the caterers, breakfast was served
between 9:00 and 10:00 am.
And Viren
sent the audio message at 1:00 pm.
So, you think they died between 12:00 and 3:00 pm?
How much alcohol had they consumed?
Not much, boss.
I found only up to 20% traces of alcohol in their blood.
But…
I found something else significant in their blood.
- What? - Xindora.
- Xindora? - Yes.
It's a drug
- effective in knocking someone out. - Okay.
So, the killer spiked their drinks
to ensure they couldn't resist before burning them.
Correct!
I have another crucial detail to share.
- What? - One minute.
Gargi!
Boss, apart from their DNA, another person's fingerprint
was found at the crime scene. Look at this.
Okay!
This means there was a fourth person present.
Yes, sir, this fingerprint was found on a coffee mug
and doesn't match any of the victims.
So, this fourth person will tell us
what happened in that villa.
Who is it?
Avani, check the footage
from when Viren and his friends arrived at the villa,
starting from 3:00 pm the day before the murders.
We might find a clue about this fourth person.
Okay.
Look, sir.
This woman entered the villa at 8:00 pm,
the night before the murders.
Just a minute. Forward it.
And check when she left.
I've checked the entire footage. The woman
is not seen leaving the villa.
What?
The woman didn't leave the villa?
- Then where did she go? - No idea, sir.
She entered the villa,
but there's no CCTV footage of her leaving.
We've searched every corner of the villa, sir.
She's not there.
Can you see her face?
Sir, the face isn't very clear.
But I'll try to clean the image and send it to you.
Amazing.
The girl entered the villa the night before, what was she doing there?
Sir, it's possible she was having an affair with one of the three.
We'll only know after questioning their families.
Pankaj, send the footage quickly.
Okay, sir, I'm sending it.
ANANYA (VIREN'S GIRLFRIEND)
Any idea who did this?
The investigation is still ongoing.
Ms. Ananya, how was your relationship with Viren?
You two were together for many years, right?
Yes.
We met at a party five years ago.
Viren was everything to me.
But you broke up with him six months ago, right?
NAMRATA (ANUJ'S WIFE)
Anuj was very close to all of them.
So close that
after college, they didn't want to separate.
That's why they started a startup together.
So, they were not just friends but also business partners.
Their startup was very successful,
and they got offers to sell it.
They earned millions
by selling it and then parted ways.
After that,
they didn't see each other for many years.
How long has it been since then?
Around…
eight years, sir.
Eight years?
After eight years,
how did they reconnect?
Sir, there was a college reunion three months ago.
That's where they met.
College memories came alive.
Anuj was very happy. And now this happened.
Sir, I need to go home, my son is alone.
Mrs. Namrata,
we're extremely sorry
for calling you here for interrogation under such circumstances.
But we promise
to catch the killer as soon as possible.
Okay?
Problems arise between couples, right?
After so many years, some tension had crept into our relationship, too.
But we were trying to fix things, and they were improving.
In fact, we had grown quite close recently.
Ms. Ananya, Viren vacationed with you on that island every year.
Why did he go with his friends instead this time?
Because he wanted to spend time with his friends,
Sid and Anuj.
What would I do among them?
Okay.
Where were you between 1:00 and 3:00 pm on the day of the murder?
Are you suspecting me?
How could you do that?
I was at City Mall.
I was shopping. If you don't believe me,
you can check at the stores.
Okay.
Do you recognize this girl?
She looks like Nikki.
Who is Nikki?
She studied in college with Viren and his friends.
But why are you asking about Nikki?
Did Nikki kill Viren?
Sir, Ananya is telling the truth.
She was at the mall between 1:00 and 3:00 pm on the day of the murder.
- Sir. - Yes.
Nikki contacted Sid, Viren, and Anuj through social media
- after the college reunion. - Okay.
She left her number in a message.
We tried calling it, but the phone is switched off.
Did you try tracking the phone's location?
Yes, sir.
The last location was the island itself.
This is Nikki.
Someone stabbed her to death.
We saw Nikki entering the villa on CCTV,
but not leaving.
So how did she end up dead here?
Yes.
The person we suspected has been murdered.
So, who is the killer now?
What are you doing?
- What am I doing? - You're listening to songs.
Not songs.
I'm listening to the report of my investigation.
- Then tell us the report. - Yes, I'll tell you.
But first, you tell me, what do you think happened to these four?
So, are you testing us now?
- Not testing, but I… - Sir, I'll explain.
Go on.
Sir, it appears
Nikki called her three friends, Viren, Sid, and Anuj,
then killed them.
But later, someone double-crossed Nikki
and stabbed her to death.
The problem we can't understand
is how Nikki's body left the villa unnoticed on CCTV.
Was it perfect?
Boss, the real story is that
- Nikki isn't the killer in this case. - What?
How can you say that so confidently?
Because I have science with me.
Skip the dialogue and get to the point.
The point is, boss,
Nikki was killed
at least one night before the three friends were murdered.
What are you saying, sir?
This isn't my theory, it's forensic science.
After death,
a body changes color,
and the muscles stiffen.
- Rigor mortis. - Exactly.
And after examining Nikki's body, it's clear
she's been dead for at least 48 hours.
So, the killer murdered Nikki first
and then killed the three friends the next day.
I don't know who or how those three were killed,
but I can tell you how Nikki was murdered.
Stop building suspense, sir. Tell us!
Come!
Look at this. Here's Nikki's X-ray.
See these wounds?
It looks like she was attacked with a sharp weapon,
like a knife or something similar.
And…
Wait a minute.
Abhijeet, do you have a pen?
- No, but I have a gun. - Gargi!
Give me a pen.
He has a gun!
What are you doing, sir?
Nothing.
I'm just demonstrating how Nikki was killed.
Whoever stabbed Nikki
was left-handed.
The person was left-handed.
And the wine mug we found
indicates that Viren was left-handed.
So Viren killed Nikki,
and the next day,
someone else murdered Viren, Sid, and Anuj.
That's what the investigation suggests so far.
But the question remains the same.
If none of them left the villa,
how did Nikki's body end up near the sea?
You investigate that.
Meanwhile, I'll check Nikki's clothes for more clues.
Nikki contacted her three friends,
Sid, Viren, and Anuj
after the college reunion.
She went to meet them at the villa on the island.
There, Viren killed Nikki.
It's possible Sid and Anuj
were also involved in Nikki's murder.
But why?
Why did they kill Nikki?
What secret about Nikki
was so dangerous that
we can't find out?
We'll need to find out.
We checked Nikki's bank records.
She opened a new account a few months ago.
A large sum of money was transferred from some shell companies.
This account was opened just days after their college reunion.
We checked the bank accounts of all three friends.
The amount transferred to Nikki's account
matches the money Viren moved to a foreign account.
Sir, we interrogated Viren's girlfriend, Ananya,
but she had no idea about these transactions.
This can't be a coincidence, sir.
It's possible Viren gave Nikki that money.
Or maybe Nikki was blackmailing all three of them.
Giving Viren a motive
to kill Nikki.
But, sir, they were college friends.
What could have happened between them for Nikki to blackmail them?
The answer lies in what happened on the night of the college reunion.
The transactions took place that very night.
What could have transpired that night?
In that college.
What could have happened?
Where can I meet Amit?
Amit. Amit.
Amit, someone is here to see you.
He's on his way.
Yes, tell me.
Amit, we are from the CID.
- CID? - Hmm.
We have come to enquire about Nikki.
About Nikki?
Someone has murdered Nikki.
COLLEGE REUNION
SID, VEEREN, ANUJ
NIKKI, SHEENA
My business is killing.
Okay, Amit. My drink is all done.
If you wish, I'll bring the entire bar.
Oh…
I'll be back.
I used to like Nikki a lot.
I don't know
what she saw in Viren.
Viren and Nikki were having an affair.
I told Nikki several times
to stay away from Viren.
SHEENA (NIKKI'S FRIEND)
Did…
Nikki mention Viren or his friends?
I mean, any secret
or something
that could cause harm to Nikki.
No.
Nikki never mentioned anything like that.
On Monday, the day the three of them were murdered,
where were you between 1:00 and 3:00 pm on that day?
On Monday, I was at home.
I had nothing to do with the murder of those three.
Sir, I accept that I used to hate all three of them.
But only because they were not good people.
Sir, whatever they did with Rohit,
after that everyone used to hate them.
Uh, Rohit?
He was in college with us, sir.
He was a good human. He was top of his class.
Viren and his gang bullied him so much
that one day before the graduation ceremony
he killed himself.
Uh, where was Rohit living?
Viren.
Anuj.
And Sid.
Rohit was a classmate of these three boys.
He committed suicide ten years ago.
As per police records, he poured kerosene over himself
and set himself on fire.
The college authorities
called his suicide a result of his mental illness,
to save the college from disgrace.
And said that the bullying was just a rumor.
But the way Rohit died due to third-degree burns,
Sid, Viren, and Anuj have died
the exact same way.
How is that possible?
Something is really messed up here.
Sir, I think someone has taken revenge.
But Rohit died ten years ago, sir.
If these three are responsible for this death in any way,
why would anyone take revenge after so many years?
Maybe the dirty truth has been hidden for ten years
and had come out during this college reunion.
Or it's possible that night, Nikki found out about this,
and she started blackmailing all three of them.
Apart from Nikki, there was someone else
who knew about this secret.
And they decided to avenge Rohit's death after all these years.
Someone who was very close to Rohit.
And someone who was present at the reunion that night.
COLLEGE REUNION, ANANYA
SID, ANUJ
NIKKI, SHEENA
Sir, after Rohit's death, only his father, Pramod, is still alive.
I'll go and see him.
Okay, go ahead.
Purvi, let's go.
Here comes the slacker.
Yes.
What did you say?
- Nothing. - No, you said something just now.
Slacker.
I'm the one who does all your work.
- Slacker… - The CID gives you a salary.
Don't they pay you?
- Yes, they do. - Then?
Tell me, what is the work?
Quickly tell me what Nikki's DNA report says.
I found Viren's DNA from Nikki's DNA.
Viren's DNA?
One more thing.
Because Nikki was not fully drowned underwater,
I've found a chemical on Nikki's clothes.
- What did you find? - Have a look.
How did sulfuric acid get on Nikki's body?
I don't know about that.
- When do you know anything? - Come on, listen to me.
Look, sulfuric acid is either
mixed in pesticides, that is used for trees,
or it is added in closed drainage pipes.
This is something to be understood, sir.
Nikki did not leave the villa.
But how did she reach the beach?
Closed drainage pipe.
Daya, maybe
there is a closed drainage pipe in that villa
which is connected to the ocean.
The exit drainage should be somewhere nearby.
Check it quickly.
I found it. Hey. I found it.
Sir…
There's no one here.
No. Oh!
Daya, sir… Daya, sir…
Help. Is anyone here?
I survived.
What is this?
Rat?
Hey, don't bite me.
My son was a genius.
He spent his entire college life
working on his project research.
That project was going to change his life.
But those three sinister men
stole my son's
research,
ideas,
and his plans.
And one night,
I got a call from Rohit's college.
They said that my son
had committed suicide.
It was not suicide.
My son would've never killed himself.
What do you suspect?
What could've happened with Rohit?
They killed him.
Those three boys killed my son.
I went to the college authorities.
I went to the police too.
But…
I was alone and old.
Who would listen to me?
I'm sorry you had to go through this trouble.
Do you…
know any of Rohit's friends who was close to him?
Any boy or girl?
Yes.
There was a girl.
Rohit and she
used to like each other a lot.
After Rohit died
she came to see me several times.
Do you remember her name?
Sheena?
Did Nikki mention Viren or his friends?
Or any secret or something else
that might harm Nikki.
No.
Nikki never mentioned anything like that.
Thank you, Mr. Pramod.
We'll meet you again soon.
But Sheena and Nikki were very good friends.
Maybe Sheena took revenge for Rohit's death.
As much as Sheena is telling the truth, she's hiding something.
We have to dig it out.
Where has Pankaj gone to? I'm not able to reach his phone.
Amazing. Where has he disappeared to?
Pankaj.
What? Drainage?
Could Pankaj be inside?
Pankaj, can you hear me?
Daya, sir…
Yes, Pankaj. Are you okay?
Yes, sir.
How did you get inside?
Where are you?
Sir, I'm behind you.
Why were you shouting?
Sir, you were shouting, so I was also shouting.
Sorry, sir. I realized
how Nikki came into the villa, but wasn't seen going out.
Sir, Viren and his friends killed her
and pushed her into this drainage pipe.
They must have thought that no one will find Nikki's body.
And the body somehow got out of the pipe and reached the ocean.
By the force of the waves,
the body got washed onto the beach.
Sir, this means the person who killed Viren and his friends
was so proficient that he came out of this way and went back, too.
But this drainage pipe begins here and connects to the sea.
Then how did the killer come in from the sea?
Pankaj, this is an island.
There is ocean on all four sides.
There is only one option to get here.
Someone must have taken a fisherman's boat to get here.
Sir, I got it.
It must have been the same fisherman.
Sir, Sheena's phone is getting further away from us.
Hurry up, sir.
What is the distance?
Around one kilometer.
What is it?
Sir!
Sir, I did not do anything, sir.
I did not say anything because I thought it was not important.
We will decide what is important and what is not. Got it?
- Tell me, what did you do? - Sir,
- I rented my boat to someone. - Who?
I did not see him.
I was getting good money for my boat, for 24 hours.
- That's why I did not overthink it. - Is it?
Looks like you're vision has weakened.
Come, let me show you.
Get out.
Come on. Get out.
What is going on?
Don't try to be over-smart, Sheena.
We have found out that before Rohit died
you were his girlfriend.
- So? - So?
When you found out that Viren and his friends
stole Rohit's research and began their start-up
and they killed Rohit, you decided to avenge his death.
What? Did the three of them kill Rohit?
Sir, I don't know anything about this.
- Sir, I'm telling you the truth. - Don't lie, Sheena.
Nikki was your friend.
She must have told you after the college reunion.
Sir, don't just say anything.
If Nikki knew anything, she'd have told me. It's nothing like that.
Why? Didn't Nikki blackmail the three of them for money?
Why would Nikki blackmail anyone?
Her uncle had left property worth millions to her.
Some paperwork was pending.
But before that, Nikki…
I'm telling you the truth. Nikki would never blackmail anyone.
Did you not hire a boat from a fisherman?
Did you not swim to the island?
Sir, I have a water phobia.
Forget the sea, I'm scared of entering a swimming pool.
Water phobia?
Yes, sir.
We'll soon know.
Who's there?
Who is it?
You?
Who are you? What do you want?
Madam, some of your belongings were with me.
I came to give it to you.
Here you go.
What is this drama?
These are not my earrings.
- Go from here. - Why are you lying, madam?
This belongs to you.
You left them on the boat,
- the day you rented it from me. - Which boat?
Don't act too smart. Leave right now.
The same boat, madam,
for which you gave me plenty of money.
Do you remember?
How can you forget like this?
When I found this earring, I thought I must return it to you.
- Please take it. - Have you lost your mind?
I was not wearing these earrings on that day.
Which earrings were you wearing that day, madam?
ANANYA (VIREN'S GIRLFRIEND)
The three of them should not have killed Rohit.
What was your connection to Rohit?
I was his partner for the start-up.
And on the night of the college reunion,
I found out the truth about Viren and his friends.
Guys, if not for Rohit,
we wouldn't be so rich today.
No, guys.
You should thank Nikki, not Rohit.
Because if Nikki had not been there,
and if she hadn't stolen Rohit's idea and given it to us,
then the start-up wouldn't have started at all.
So, cheers to…
- Nikki. - Nikki.
The way they used Nikki
and stole all the research and data of our start-up.
Even after being in a relationship with Viren, I did not understand it.
He never let me find out.
That's why you decided to avenge Rohit's death.
Who was sad about Rohit's passing?
I could have earned millions
from my idea of the start-up that they stole.
And there would be hundreds like Viren hovering around me.
I wanted to take revenge for that. That's all.
In order to take revenge against them, you became Nikki.
Yes. I became Nikki
and blackmailed Viren and his friends for killing Rohit.
And yes,
I was the one who opened a fake bank account in Nikki's name.
So that the three of them believe
that Nikki is blackmailing them for the money.
Nikki knew nothing about Rohit's death, did she?
She was madly in love with him.
And she even came that day
to clear up all misunderstandings. But they did not listen to her.
And just as I had planned,
they lured her to the villa, killed her, and got rid of her body.
Viren used to go with me to that island every year.
That's why I was very familiar with that place.
I quietly mixed their drinks with drugs
so that they'd lose consciousness.
You did a good job of cleaning up.
That's why we did not find proof of the drugs that you used.
And around noon, when the three of them were unconscious,
I sprayed a chemical called triethylomate on them.
And burned them.
Triethylomate is such a rare chemical, where did you find it?
Basically, this chemical is used in the textile industry to make polyester.
I have a friend whose father has a textile business.
I stole it from his factory.
And then on Viren's phone
you changed the time to 1:00 pm to send
your pre-recorded message to the caterer.
And then, you burned the phone, too.
I had thrown Viren's phone into the sea.
The phone that you got near Viren
was a dummy phone.
Because you will not get any records from a burnt phone, right?
After that, I went to the mall.
So that I have all the evidence with me.
To prove that I was at the mall when they were murdered.
My plan was perfect.
No doubt you hatched a great plan.
But you forgot one thing.
CID is always one step ahead of the criminal's plan.
You can sit inside the jail
and plan the rest of your life.