A detective who was chasing the real culprit of a serial murder case faces the hidden secret of his family. Jin-sung is a cheerful yet nasty-tempered detective at Woojin Police Station who fights for justice with all his heart. Meanwhile, Young Ju is a competent prosecutor with a high winning rate who believes that injustice must be punished through injustice. She is also an old friend of Jin-sung and Jin-woo. Jin-sung transfers to a special investigation team in Seoul for serial murder cases and carries out the investigation with Young-ju. However, Jin-woo, Jin-sung's brother, gets arrested as a suspect of the serial murders.
Na In-woo
Oh Jin-sung
Kim Ji-eun
Ko Young-ju
Kwon Yul
Cha Young-woon
Bae Jong-ok
Yoo Jung-sook
Lee Kyu-han
Park Ki-young
Jung Sang-hoon
Bae Min-gyu
Jang Hye-jin
Hong Young-hee
Kim Hee-jung
Pi Jang-mi
Ren
Oh Jin-woo
Jeong Ga-hee
Yang Hee-joo
Kim Hyeong-mook
Chu Young-chun
Choi Gwang-il
Cha Jin-cheol
Kim Cheol-gi
Jung Woo-no
Na In-kyu
Yook Jung-tae
An Si-ha
Marie
