Heo Mumyeong is a cold-blooded serial killer. Following his latest murder, he disposes of the evidence and decides to move to his late grandmother's home in Gwichon Village. From the moment he approaches the village, the atmosphere is unnerving. Strange and hostile individuals question his identity and reason for coming, and his grandmother's house has been oddly well-maintained. The villagers seem to want the apathetic outsider gone, while burying dark truths and worshiping the mysterious "Mother." Mumyeong does not believe in ghosts or shamanism, but the violence, death, and creepy rituals prove that something far worse than him is watching.