Directed by: Darren Lynn Bousman
Written by: Patrick Melton, Marcus Dunstan
Cast: Shawnee Smith, Tobin Bell, Costas Mandylor, Lyriq Bent
Studio: Lionsgate
Genre: Horror
Official Site: http://www.saw.com/ 
Release Date: October 26, 2007 (wide) 

Synopsis:
Jigsaw still haunts the living in Saw IV, forcing them to appreciate life, or face death. As a continuation of Saw III, Jeff must find his daughter and escape the building to which they are confined before they both die. After finding another tape of Jigsaw, Jeff realizes there may be a newly added piece of the puzzle that he must decipher before it’s too late.