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.
Kim Yun-seok
Kim Hyeong-min
Ju Ji-hoon
Kang Tae-oh
Moon Jeong-hee
Kim Soo-min
Jin Sun-kyu
Detective Jo
Jeong Jong-jun
Chief of Crime Department
Heo Jin
Ji-hee's Grandmother
Kim Joong-ki
Lawyer
Kim Young-woong
Jeong-bong
