Jo Yong-woo attacks Lee Min to make Lee Hyun suffer. Cha Ji-an arrives in time to prevent Yong-woo from killing Min, but he manages to get away. Lee Hyun confronts the Planning Officer and Deputy Chief about their collusion with Lee Joon-yeong. Ji-an has concluded that the Medical Examiner, Lee Jun-ho, is really Lee Joon-yeong. Tracing Jo Yong-woo’s phone takes the team to the site where he was tortured, killed, and buried. While the team is celebrating Ji-an's birthday, she receives a delivery package that contains a birthday card and a map.
현은 조형우가 노리는 사람이 자신에게 소중한 사람이라는 걸 깨닫는다. 예상대로 선호는 퇴근길에 조형우에게 공격을 당하게 되는데...