Some friends stop to take a woman who was hitchhiking, only it will end up being poisoned by gas. When they wake up, realize that all prisoners are in a house from which it is impossible to get out. At one point, starts a video in which they are told what to do because eventually to escape from there. Thus, men are required to attend all kinds of sadomasochistic games of extreme violence, torture and suffering endures unimaginable. Soon, everyone turns into an awful lot of tough, able to do anything to get rid of that nightmare.