Presented as a severely degraded Home movies, the film opens with a man named Peter inviting his camera-wielding friend into his basement, where he is holding a woman named Laura captive. Having already killed her boyfriend (whose castrated body has been left in a bathtub to rot), Peter is keeping Laura alive so he and his accomplice can torture her at their leisure, committing sadistic acts such as slicing one of her nipples off, and covering her in feces and urine.