A twisted thriller that follows 19-year-old hooligan Tommy, who revels in a life of drugs, parties, and violence. One night, on a bender with his reckless friends, he becomes separated from the group and is abducted by an unknown figure. Though he is no stranger to inflicting violence, he is enraged and horrified when he wakes to find himself chained in the basement of the isolated suburban family home of Chris, his wife Kathryn, and their young son Jonathan. The family sets out to reform Tommy's unruly behavior, forcing him to comply with their relentless mind games or seek escape at any cost.