August Underground is a 2001 American exploitation horror film directed by Fred Vogel, and written by Vogel and Allen Peters. The film stars Vogel as a serial killer named Peter, who kidnaps and kills several innocent people, while his unnamed accomplice, played by Peters, films and documents the murders.
Filmed in an intentionally amateurish found footage style, August Underground was met with mixed reviews. The film was followed by two sequels, August Underground's Mordumin 2003, and August Underground's Penance in 2007.
Peter, a serial killer, invites 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 and his accomplice torture her at their leisure, committing sadistic acts such as slicing one of her nipples off and covering her in feces and urine.
Next, the two pick up a female hitchhiker. After Peter coerces her into performing oral sex, he beats and leaves her for dead on the side of the road. After the duo are kicked out of a concert for rowdy behavior, Peter and his accomplice return to the house to find that Laura has died.
Peter murders an old woman in her home, then terrorizes a convenience store with his accomplice. They abandon their plans to kidnap the clerk or a shopper when they hear police sirens approaching. The two then proceed to tour Roadside America, and visit a tattoo parlor. When the tattoo artist finishes giving Peter a tattoo, he and his twin brother are captured by Peter and the cameraman. They cut a leg off of the tattoo artist then bludgeon him and his brother to death.
The two hire prostitutes for a drug-fueled orgy. Peter sodomizes one prostitute while beating her with a hammer. The remaining prostitute tries to escape. In the chaotic chase that ensues, the accomplice drops the camera, leading to silence in the room.