A group of strangers find themselves imprisoned in a house. Unsure what they are doing there and who is behind it all, the group is soon enlightened by a video that advises them that there is a way out of the house. But the threshold they must cross is one of excruciating pain. In the face of torture, however, not everyone is willing to play by the newly created rules - the group is ripped apart by infighting, secret alliances, double-crosses and shattering outbursts of violence. With the clock ticking down the minutes, the "one for all" mentality devolves...just just how far will each go in order to survive?