Detective Cho, a cop on the edge, is mourning his mother's recent death while under investigation for graft; on top of that he is suddenly put in charge of a seemingly-impenetrable mystery.
Detective Cho
Chae Su-yeon
Detective Oh
Kim Ki-yeon
Oh Seung-min
Prosecutor Gu
Detective Lee
Young Soo-yeon
Section Chief Yoo
Detective Kim
Chae Yong-hoon
Chief of Police
Museum Colleague
Soo-yeon's Mother
Museum Colleague
Kid
