Director: Darren Lynn Bousman Writers: Leigh Whannell (written by) and Darren Lynn Bousman (written by)

Jigsaw locks a few unlucky people in a booby trapped shelter and they must find a way out before they inhale too much of a lethal nerve gas and die. But they must watch out, for the traps Jigsaw has set in the shelter lead to death also.

https://www.imdb.com/title/tt0432348/