Saw

“How much blood would you shed to stay alive?”

Lawrence Gordon (Cary Elwes) wants out of a filthy bathroom, and so does Adam (Leigh Whannell), the stranger chained to the opposite wall. A tape left behind by the killer called Jigsaw (Tobin Bell) tells them they must play his game to be freed. James Wan keeps the two men in one room, where fear and suspicion pull them apart, and the chain between them keeps them close.