Season 1

A squad of relentless detectives delves into the psyches of murderers during Korea's first serial murders that gripped the nation. Based on true events.

202212 EpisodesCrime, Drama, Mystery

Cast & Crew

Kim Hye-ok

Park Young-shin

Lee Dae-yeon

Baek Jun-shik

Jin Sun-kyu

Kook Young-soo

Kim Won-hae

Heo Gil-pyo

Jung Soon-won

Nam Il-young

Kim Nam-gil

Song Ha-young

Hong Woo-jin

Oh In-tak

Ryeoun

Jung Woo-joo

Jo Young-jin

Lee Jin-chul

Kim So-jin

Yoon Tae-goo

Kong Seong-ha

Choi Yoon-ji

Lee Haney

Im Moo-sik

Seo Dong-gab

Kim Bong-shik

Episode Guide

Song Ha-yeong pursues a criminal who targets young women. Kook Yeong-su aims to assemble a team of criminal behavior analysts.