The Guest S01 E04 It Is the Older Brother

Gil Young tries to find the culprit of the murder case after talking to Hwa Pyung, but keeps failing. Hwa Pyung visits the junkyard with Yukgwang, and tells Min Sang that his younger brother, Min Gu, is possessed. After convincing Min Sang, Hwa Pyung calls Yoon to perform exorcism on Min Gu.