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.
Kim Nam-gil
Kim So-jin
Jin Sun-kyu
Ryeoun
Lee Dae-yeon
Jung Soon-won
Kim Won-hae
Hong Woo-jin
Jo Young-jin
Lee Ha-nui
Kim Hye-ok
Seo Dong-gab
Kong Seong-ha