Isaac and his pregnant wife visit a remote Norwegian village to claim an unexpected inheritance. The couple finds themselves caught in a nightmare when they encounter a sinister cult that worships a sea-dwelling deity.
After his mother's death, Isaac and his pregnant wife return to his birthplace on a remote Norwegian island to claim on unexpected inheritance. During their visit, the couple discover dark secrets from Isaac's past. Their pleasant trip quickly turns into a nightmare when Isaac and his wife encounter a sinister cult that worships a sea-dwelling deity.