One night Yoo Bang enters a dark, mysterious villa with nothing but a flashlight, only to find an executive of the Chunha Medical Group, Ho-hae slouched in a chair, dead and Jin Ho-hae's niece, Yeo-chi hiding behind a curtain. At Ho-hae's funeral, Yoo Bang and Yeo-chi are suddenly taken into custody for his murder. We're taken three months into the past to reveal what led to this murder and exactly who was responsible. During this flashback we meet Choi Hang-woo, a director from Ho-hae