A group of friends hatch a plan to get revenge on the bullies who have been tormenting them. In doing so, they stumble upon an underground torture chamber filled with unspeakable horrors. Trapped by a madman, they are used to fulfill his demented, bloody fantasies one at a time. Their only hope for survival is to fight back and find a way to escape the killer's bloody grip.

Jonathan is a middle-aged grounds keeper at a local theme park and suffers from a debilitating case of OCD. One day, his daily routine is disrupted by a surprise visitor in his basement: a beautiful young woman who, through a jarring turn of events, ends up dead. Jonathan panics and chooses not to report the dead girl. Instead, he invites her to dinner. Jonathan is happy to have a friend, until the police start closing in, and his mind, and the body of the girl, begins to decay.