The young girl Young-shin seems to be possessed by demon and Father Kim and Deacon Choi are about to investigate the case. But to save the life of Young-shin, the have to find out if the girl is truly possessed or maybe the victim of a human force. Or in the worst case both. Written by Anonymus

Pastor Park is head of a religious investigation center that exposes cults and cult leaders. While looking into a suspicious new religion called ‘Deer Mount,’ he slowly uncovers clues that connect this cult to a series of mysterious cases of missing teenage girls when a body is found inside a damaged tunnel beams. He begins to uncover dark secrets surrounding this cult and its enforcer Na-han.