A serial killer is caught for his seventh murder. A cop tries to solve the first six cases with the killer's help, but starts to suspect that he has ulterior motives. Based on a true story.
김윤석
as Kim Hyeong-min
주지훈
as Kang Tae-oh
문정희
as Kim Soo-min
진선규
as Detective Jo
정종준
as Chief of Crime Department
허진
as Ji-hee's Grandmother
김중기
as Lawyer
김영웅
as Jeong-bong
Jeong Gi-seop
as Detective Han
김미화
as Hair Salon Manager
이봉련
as Kang Sook-ja
전국환
as Hyeong-min's Father
