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.

"Crimes This Horrible... Are Better Left Unsolved."

Credits

Chang Youn-hyunDirector

Han Suk-kyuDetective Cho

Shim Eun-haChae Su-yeon

Jang Hang-seonDetective Oh

Yu Jun-sangKim Ki-yeon