The Guest (2018)

S1E4 It Is the Older Brother

After speaking with Hwa Pyung, Gil Young continues her search for the murder suspect but hits one dead end after another. Meanwhile, Hwa Pyung heads to the junkyard with Yukgwang and breaks the news to Min Sang that his younger brother, Min Gu, is possessed. Once he manages to convince the skeptical Min Sang, Hwa Pyung contacts Yoon to carry out an exorcism on Min Gu.