A California highway patrol officer, grieving from a recent tragedy, receives a letter from his former fiancée, desperately seeking his help to find her missing daughter on a remote island in the Pacific Northwest. Upon arriving, he finds the residents peculiar and uncooperative, living by a set of ancient, matriarchal traditions that perplex and alarm him. The locals are followers of a neo-pagan religion, which worships nature and seems to center around the fertility of their crops and women. The island's eerie atmosphere and the secretive behavior of its inhabitants only deepen the officer’s determination to uncover the truth about the girl’s disappearance.

As he delves deeper into the mystery, the officer encounters a series of increasingly unsettling rituals and beliefs. His inquiries are met with evasion and hostility, leading him to suspect that the girl’s disappearance may be connected to the island’s ritualistic practices and upcoming harvest celebration. Hindered by the islanders’ stonewalling, he must navigate their cryptic customs and codes to unravel the fate of the girl, all the while confronting his own personal demons and the haunting memories of his loss. The officer’s quest becomes a race against time as he edges closer to the heart of the island’s secrets, challenging both his sanity and his survival instincts.