The Guest - Season 1 (2018)

In 1998, in a small village called Gyeyangjin, people started to get possessed and killed by a powerful evil spirit called Sohn. A young boy Yoon saw lost his parents because of his possessed older brother. A psychic boy Hwa Pyung was possessed and got his mother killed.

Gil Young finally catches Young Soo, but Hwa Pyung takes him to Yukgwang’s place as he is possessed. Yukgwang refuses to perform exorcism and calls Father Yang and Yoon. Meanwhile, Father Yang fails to drive away the evil spirits from Young Soo’s body and kills himself.

Hwa Pyung falls asleep and sees a fake taxi driver abduct and kill a woman and carry the dead body in his car. Hwa Pyung tells Gil Young to check if there are any missing person cases reported, and Gil Young finds one that matches what Hwa Pyung described. Meanwhile, Yoon visits the late Priest Han’s house.

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.

Hwa Pyung and Yoon find out that they have seen each other in front of Yoon’s house 20 years ago. And Gil Young says that her mother was the female detective who was murdered by Yoon’s older brother 20 years ago. In the meantime, Yoon meets a woman who claims herself possessed. Gil Young senses that bloodstain found at a crime scene are related to Sohn.