Thanks to Kang Su, Yeol Mu, and Dong Chi are able to solve a big piece of the Han Byeol case puzzle. Kang Su finds Gae Pyeong with a suspicion he’s overlooked for a long time. After meeting an unwanted guest, Moon Hee Man is at a crossroad. The Public Safety Team identify the shocking story to the Song Ah Reum case. They want to press on with the case, but are faced with a situation that flips the team upside down. (Source: Kocowa)