Young Jin lays her hands on a doll with six wings from a bereaved family member of the serial murder. She thinks that the doll has something to do with the serial killer. Her investigation leads her to New Life Church and a suspect. Meanwhile, Eun Ho sees a man collapse on the street and takes him to the hospital.

Sun Woo asks Eun Ho if anyone at school bullies him, and Eun Ho says no. Eun Ho receives a prize for saving a man who lost consciousness on the street the other day. Meanwhile, Young Jin finds it strange that the 9th victim Im Hee Jung’s cell phone is nowhere found.