Season 1
A team of tenacious detectives study the minds of murderers at a time when Korea's first serial murders terrorized the nation. Based on true events.
Episodes
1 Red Cap Incident Jan 14, 2022 
2 Habits of Criminals Jan 15, 2022 
3 Ha-yeong Meets Tae-gu Again Jan 21, 2022 
4 What Must We Remember? Jan 22, 2022 
5 Looking into the Minds of Evil Jan 28, 2022 
6 The Man With the Hiking Boots Jan 29, 2022 
7 A Scary Wolf Inside the Rabbit Burrow Feb 25, 2022 
8 There Are No Perfect Crimes Feb 26, 2022 
9 Becoming the Monster Mar 4, 2022 
10 I Just Liked It Mar 5, 2022 
11 The Victims And Their Families Mar 11, 2022 
12 The Hearts of Criminals Mar 12, 2022