Remote countryside horror, as a teenage boy and his younger brother are driven by their father to the estranged mother’s new residence. She is sharing a cottage-cum-cave with her new partner, having gone back to a much simpler life.
Trouble is, there’s a small doorway at the back of the cave, and at night the boy hears voices from behind it, and as you might expect, nothing good is going to come of looking behind the door.
