Saw is a 2004 American
psychological horror film directed by
James Wan. It is Wan's feature film directorial debut. The screenplay, written by
Leigh Whannell, is based on a story by Wan and Whannell. The film stars
Cary Elwes and Leigh Whannell as two men who awake to find themselves chained in a large dilapidated bathroom, with one being ordered to kill the other or his family will die. It is the first installment of the seven-part
Saw franchise.