A group of actors and production staff, upon arriving at a rural abandoned school for filming, find themselves enveloped in a mysterious energy from the first day of filming itself. The situation takes a drastic turn after they encounter an entity that should not have been awakened. They now strive to escape from it.
After waking up with mysterious wounds on his hands, a champion fighter finds himself in an otherworldly battle against evil forces that wreak havoc in the human world.
Horror webtoon writer Ji-woo arrives at a shabby apartment called Gwanglim Mansion in search of ideas. The middle-aged caretaker with an expressionless facial expression unravels a bundle of strange events that happened in the apartment, and rooms 504, 708... The more Ji-woo hears the story, the more he becomes obsessed with the Ghost Mansion.
After moving into a new house, a young girl begins displaying strange and disturbing behavior until, one day, she disappears behind a closet. While the devastated father is left with no clue about his daughter’s disappearance, an exorcist shows up to help.
Eun-hee is hired as a vice principal at her old high school, where strange things take place in the closed down washroom. High school student Ha-young and So-yeon, who used the washroom as their hideout hear humming in the empty washroom, and believe that a ghost exists inside. Ha-young discovers a flowerpot on the stairs and suspect that Eun-hee is somehow linked to the mystery. Suffering from hallucination upon her inauguration, Eun-hee finds a ghastly figured girl in the washroom mirror and begins to believe that the girl was the one who brought her back to this school…