Four mathematicians are imprisoned in a shrinking room; with the walls closing in, they must try anything to escape this fatal puzzle.

A young married couple becomes stranded at an isolated motel and find hidden video cameras in their room. They realize that unless they escape, they'll be the next victims of a snuff film.

Two police officers struggle to survive when they become trapped beneath the rubble of the World Trade Center on September 11, 2001.

Nine strangers wake up in a house with no recollection how they got there and no way out. The voice on the PA introduces them to a grisly game they must play. The prize is $5 million and their life.