Major crimes unit detective Seong-jin arrests Tae-sung for petty crimes, but shocked to find out that he is the notorious serial killer. However, Seong-jin becomes doubtful of his identity as the serial murder case is investigated.
Kang Seong-jin
Son Hyun-joo
Choi Gyu-nam
Jang Hyuk
Song Jeong-sook
Ra Mi-ran
Kim Tae-sung
Jo Dal-hwan
Park Dong-gyu
Ji Seung-hyun
Park Sun-hee
Oh Yeon-ah
General manager Lee
Park Ji-il
Ji-sook
Choi Youn-so
Reporter
Jong Ho
Jae Jin
Kim Sang-ho
Group leader Yang
Park Kyung-geun
Young prosecutor
Ju Seok-tae
General Manager Ma
Jang Yong-chul
Mr. No
Jang Yong-bok
Detective Kim
Kim Song-il
Sin Yong-soo
Jeong Man-sik
Son Byung-ho
Assemblyman Kim
Jang Gwang
Kim Dae-sik
Choi Seong-min
Gisaeng at Korean restaurant
Lim Ji-Min
NSP agent
Jeong Han-bin
Hwang Moo-young
Director Kang
Heo Seon-haeng
Agent Kim
Kim Geon
Choi Mi-ja
Lee Yu-jin
Lee Yo-won
Lee Hak-Ryul
Torture expert
Song Yo-sep
Press bureau director
Lee Jung-chul
Pug dog's gang
Park Jae-cheol
Newspaper reporter
Nam Jeong-woo
Lawmaker Jung
Lim Yong-soon
Free Daily reporter
Lee Seung-yong
Professor Park
Yeo Moo-yeong
Police chief
Kim Jung-soo
Michael
Matthew Douma
Agent
Park Hyeong-su
Reporter
Kim Si-young
Nurse
Oh Jin-ha
Free Daily Reporter
Shin Seung-hwan
Torture tech
Noh Shi-hong
Cafe woman
Lee Ja-eun
Detective Kang
Kang Dong-woo
Prison officer
Lee Won Hee
Gisaeng
Heo Na-kyung
Student
Kim Young
Montage man
Shin Jeong-man
Doctor
Jang Young
Agency for National Security Planning Agent Kim
Kim Moon-jong
Min-guk's son
Kang Chae-min