Yun, Hwa-pyeong and Gil-yeong must stop Jung Seo-yun. When Yun gets trapped in a basement with her, he's forced to face his personal demons.

Wanting answers about the dead priest, Hwa-pyeong tracks down his long-lost father. Gil-yeong and Yun ask around about Park Il-do's origins.

Hwa-pyeong becomes the wrongful suspect in a homicide. But he's more concerned about preventing his possessed father from doing more damage.