According to FEARnet, a site affiliated with Lionsgate, the upcoming plot for Saw IV will revolve around Jeff and his daughter in the moments after the third film ended.
According to the site, 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 itís too late.
The Darren Lynn Bousman film is set to hit theaters this October.