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 Hyeong-min
Kim Yun-seok
Kang Tae-oh
Ju Ji-hoon
Kim Soo-min
Moon Jeong-hee
Detective Jo
Jin Sun-kyu
Chief of Crime Department
Jeong Jong-jun
Ji-hee's Grandmother
Heo Jin
Lawyer
Kim Joong-ki
Jeong-bong
Kim Young-woong
Detective Han
Jeong Gi-seop
Hair Salon Manager
Kim Mi-hwa
Kang Sook-ja
Lee Bong-ryeon
Hyeong-min's Father
Jeon Kuk-hwan
Captain Ma-soo
Kim Jong-soo
Park Mi-yeong
Bae Hae-seon
Kim Wook-cheol
Won Hyun-jun
Judge
Park Jin-young
Song Kyeong-soo
Ju Jin-mo
Diving Captain Jam-soo
Ko Chang-seok
President Park
Lee Yoo-jun
Oh Ji-hee
Kwon So-hyun
Young Kang Tae-oh
Jeong Taek-hyeon
Noodle Restaurant Owner
Kim Mi-kyeong
Detective
Park Sung-hyun