Saw IV

Saw IV is a 2007 American horror film directed by Darren Lynn Bousman from a screenplay by Patrick Melton and Marcus Dunstan, and a story by Melton, Dunstan, and Thomas Fenton. A sequel to Saw III (2006) and the fourth installment in the Saw film series, it stars Tobin Bell, Scott Patterson, Costas Mandylor, Betsy Russell, and Lyriq Bent. The film picks up where the previous film left off, with the death of John Kramer. However, it is revealed that John had planned for his death and left behind a series of recordings and clues that would lead investigators to his final game. As the detectives try to unravel the mystery of John's final game, they are drawn into a web of deceit that reveals more of the motives behind his lethal games. Saw IV was the first film in the franchise to not be written by Leigh Whannell or James Wan.

Synopsis: Wikipedia, CC BY-SA 4.0