A by-the-book police officer is assigned to secretly investigate a team leader who believes that the rules shouldn't stop an investigation. As the officer investigates further, his own attitudes begin to mirror the team leader's.
as Park Kang-yoon
as Choi Min-jae
as Chief of inspection
as Na Young-bin
as Cha Dong-chul
as President Kim
as Seo Joong-ho
as Yong
as Kim
as Kwon Gi-ahn
as Min-jae's father
as Min-jae's younger sister
as Jeon Yong-bae
as Detective Moon
as Detective Ahn
as Detective Ki
as Detective Heo
as Jang
as Paramedic
as Past police
as Informant