FADE IN:

INT. MIN JOO'S ROOM – AFTERNOON

TAE HYUNG: It's a murder case you need to solve first Y/n. Not Min Joo's.

Y/N: Wh-What're you talking about?

TAE HYUNG: Min Joo got scared seeing her school mate outside the café. That school mate is dead.

Y/n's too numb to be surprised.

Y/N: Oh.

She looks back at the sticky note.

Y/N: Do you know what that is?

TAE HYUNG: It's a warning.

Y/n's sensing he knows more.

Y/N: You know who put that?

TAE HYUNG: Before I started handling things for the minister, he used the help of a man who went by the name, "Professor".

Y/n recognizes the name.

Y/N: The cult leader?

TAE HYUNG: A murderer too.

Y/n's face tenses.

TAE HYUNG: He warned his next victims, by drawing simile faces with blood and hanging it up in random places his victims visit. Most of the time they go unnoticed, and they end up... dead.

Y/N: If the minister worked with him, you would know how to find him. Where is he?

TAE HYUNG: To the world, in San Francisco.

Y/N: To you?

TAE HYUNG: In his grave in Jeju. That note is from a "Professor" wanna be.

Y/N: No, that is him trying to fool me.

She gets on her feet. Tae Hyung has a question, that's been constantly bugging him.

TAE HYUNG: You know who's doing this?

Y/n stares at the wall ahead, her eyes growing darker, and sadder.

Y/N: If I did, would I be here?

She snaps a photograph of the sticky note, grabs the diary and walks out of the room.

CUT TO:

INT. Y/N'S CAR – AFTERNOON

Y/n's on her laptop, reading the school records of the dead schoolmate. Her name is Seo Bo Kyung. Tae Hyung, who's driving, glances at his ringing phone.

Y/N: Suicide?

Tae Hyung puts his phone on speaker.

TAE HYUNG [INTO PHONE]: Did you get anything?

HO SEOK [OVER PHONE]: No one entered the building before you two. I've checked all entrances the intruder could have used, but nothing.

Y/n's phone rings, she puts it on speaker too.

Y/N [INTO PHONE]: I can't get access to the school violations records.

YOONGI [OVER PHONE]: We got in. Her name's on the list. She was a bully. Specifically, Min Joo's bully.

A stinging moment for Y/n who dismisses her emotions with a nod.

Y/N [INTO PHONE]: I'm heading to the school, when I get there, I'll need you to-

YOONGI [OVER PHONE]: Shut off the CCTV cameras and locate Tae Hyung's phone. Don't worry, we got it.

Y/N [INTO PHONE]: Thank you.

She hangs up.

NAM JOON [OVER PHONE]: We're tracking Y/n's phone, we'll be able to locate the caller when he calls again.

TAE HYUNG [INTO PHONE]: Thanks, Hyung.

He hangs up. Y/n puts her phone down, getting back to reading her laptop screen.

Y/N: Who killed you?

Y/n can feel her heart wanting to jump out of her rib cage, this is too much for her – I can't let this happen again.

BUZZ!! All eyes on her phone: It's the mystery caller.

TAE HYUNG: Want me to answer it?

Y/n shakes her head and answers the call.

CHAE YOUNG [OVER PHONE]: Hello best friend!

Y/n's eyes widen.

Y/N: C-Chae Young?

Tae Hyung looks at her, hearing the new name.

CHAE YOUNG [OVER PHONE]: You remember right the hot dog stand! At 7! Don't be late.

Tears roll down Y/n's face.

Y/N: Chae Young...

CHAE YOUNG [OVER PHONE]: Do you believe it? This year is ending in a few days, and soon enough we'll graduate.

Y/n wishes this was real, that Chae Young was still alive.

CHAE YOUNG [OVER PHONE]: Mom's yelling at me for something again. Got to go, bye!

Y/N: Don't-

End of recording.

Y/N: Chae Young! Chae Young!

? [OVER PHONE]: One hour left, will the great Y/n be able to solve this case or will she fail?... like last time.

Y/n grits her teeth.

Y/N [INTO PHONE]: When we can talk face to face why do this?

? [OVER PHONE]: Why do anything?

The orchestral tune playing in the background, grows louder.

Y/N [INTO PHONE]: I'm a reporter, not a detective. Why're you making me do this?

? [OVER PHONE]: What?! You used to love solving puzzles all the time!

Y/N [INTO PHONE]: What do you want from me?

? [OVER PHONE]: Fun. I have a lot of fun knowing I'm the only one who knows this fearful side of you.

Y/n's gaze drops.

? [OVER PHONE]: I have fun watching you get scared of everyone around you, because any of them can be... me.

Y/n's fingers curl up into a fist.

? [OVER PHONE]: I have fun, knowing I can be the only person who can ask you...

Y/N [INTO PHONE]: Stop.

The mystery person laughs.

? [OVER PHONE]: What do you regret the most?

Y/n can hear her internal clock, spin backwards.

CUT TO:

EXT. CONVENIENCE STORE – NIGHT

2017

Chae Young aggressively pries on her hot dog, not satisfied.

CHAE YOUNG: I can't believe Auntie Yoo's stand is closed today. We have to eat this bland... (looks at the hot dog) God knows what this is.

She looks at Y/n who's immersed in watching the TV playing inside the convenience store.

CHAE YOUNG: What're you looking at instead of me?

Y/n's watching the news, the headline: Serial killer strikes again.

Y/N: The police are going to give up on the case.

CHAE YOUNG: No. No, you're not.

Y/n looks at her, her eyebrows knitted.

Y/N: What?

CHAE YOUNG: You're not writing a report on this.

Y/N: Why?

CHAE YOUNG: Why?!

She points at the screen.

CHAE YOUNG: He isn't some corrupt teacher or bully. He's a serial killer! A murderer! I can't risk your safety like this.

Y/N: We have to move on from average cases-

CHAE YOUNG: I refuse as both your best friend and sponsor. No means no!

Y/N: I told you what my family does-

CHAE YOUNG: I don't care.

Y/N: Chae Young-

CHAE YOUNG: I'm not hearing a word you're going to say. No.

CHAE YOUNG: Promise me, you won't work on this.

Y/n whines.

CHAE YOUNG: Promise me!

Y/n frowns but eventually gives in.

CHAE YOUNG: Good. Now eat.

She takes a bite of her hot dog, and immediately spits it out.

CHAE YOUNG: God No!

Y/n flashes a tiny smile.

CHAE YOUNG: You find this funny?

Y/N: Absolutely not.

She shakes her head. Chae Young smiles at her.

CHAE YOUNG: Liar. Sit here, I'll get us something edible to eat.

She walks into the store. Y/n looks back at the TV – Sorry, Chae Young.

CUT TO:

INT. Y/N'S CAR – AFTERNOON

Sweat rolls down Y/n's face, Tae Hyung places his hand on hers.

Y/N [INTO PHONE]: Once I find you, you're dead.

? [OVER PHONE]: Looking forward to that.

Y/n grips the phone tighter, seconds away from literally crushing it.

? [OVER PHONE]: Tick Tock Y/n. Tick Tock.

The line goes dead. Y/n's arm falls to her lap.

TAE HYUNG: We'll find him.

He pats her clenched fists. Y/n takes deep breaths.

TAE HYUNG: You got this.

Y/n nods, unable to say Thank You. Tae Hyung looks ahead, his forehead wrinkles.

TAE HYUNG: What the-

Y/n looks up, to see what he's seeing. They've reached the school but everything is so calm.

TAE HYUNG: Are we at the right place?

Y/N: We are.

It doesn't look like, someone committed suicide here.

TAE HYUNG: Where's the police? Forensics?

He stops the car outside the compound and they climb out.

CUT TO:

EXT. STREET INFRONT OF SCHOOL– AFTERNOON

Tae Hyung and Y/n can't understand what's going on. They look around, absolutely no panic, grief, or death. Students start leaving the school, time to go home.

TAE HYUNG: No way...

He realizes, looking at Y/n. Seeing her eyes widen, he knows she's realized too.

Y/N: Cheater...

She turns to the car, reaching for her phone inside when she sees a student stumble toward her. The student who was thought to be dead after committing suicide – Seo Bo Kyung.

Y/N: What?

She studies Bo Kyung, she looks sick, weak.

Y/N: Are you okay?

She catches Bo Kyung before she falls, Tae Hyung rushes to help support Bo Kyung.

TAE HYUNG: Are you okay?

They hold her up.

BO KYUNG: Sa-Save me...please...

Tae Hyung retrieves his phone, calling an ambulance.

TAE HYUNG [INTO PHONE]: Hello? I'm calling from-

Y/N: What happened?

BO KYUNG: Min Joo...Min...

Y/N: What about her?

Bo Kyung vomits blood.

TAE HYUNG: Oh my-!

Tae Hyung and Y/n have to grip Bo Kyung harder as all her weight falls toward the ground.

Y/N: No...

Tae Hyung shoves his phone into his pocket.

TAE HYUNG: They're saying the ambulance will take too long, we'll have to get her there.

Y/n nods. Bo Kyung is scared to see her blood. She is supported into the rear seat of Y/n's car, and sticks her head out, so that she can vomit when more puke comes out.

Y/N: You'll be okay. We got you.

Bo Kyung nods. Y/n walks to the front of the car, reach for the handle when:

TAE HYUNG: Y/n!

She turns around, shocked to see Bo Kyung crawling away.

Y/N: Ya! Don't!

Bo Kyung gets to her feet, picking up her pace. Y/n runs after, and only after a few steps, Bo Kyung's hit by a speeding car and is thrown to the ground.

Y/N: No!

She stops, and starts shaking with fear.

Y/N: No.

CRASH! She braces herself, the sound came from behind – Tae Hyung.

She spins around, a truck's smashed into her car, and crushed it against the compound wall of the school.

There's no sign of Tae Hyung. She clutches her hair in despair. The screams of the terrified students fill the air.

New Notification on Y/n's phone – Caught you.

FADE OUT.