The Guest (2017 film)

The Guest is a South Korean horror-thriller television series that aired on OCN in 2018. It is not a 2017 film. The series revolves around a psychic, a Catholic priest, and a detective who work together to fight crimes caused by demonic possession. The primary antagonist is a powerful demon called "Park Il-do." The story explores themes of family, trauma, and the struggle between good and evil. The series gained popularity for its suspenseful plot, strong performances, and disturbing imagery.