Made by
Na Hong-jin (나홍진)

Screenplay by
Na Hong-jin (나홍진)

Cast
Kim Yoon-seok (김윤석) Eom Joong-ho, former police officer (전직 형사, 엄중호)
Ha Jeong-woo (하정우) Ji Yeong-min, serial killer (연쇄살인범, 지영민)