
STORYLINE
Informant Michael Marks awakens in a room with a spike-filled mask locked around his neck. A videotape informs him that to unlock the device, he must cut into his eye to obtain the key. He is not able to do it and is killed when the mask closes. At the scene of Michael's game, Detective Allison Kerry finds a message for her former partner, Detective Eric Matthews, and calls him in. Eric reluctantly joins Kerry and Officer Daniel Rigg in leading a SWAT team to the factory which produced the lock from Michael's trap. There they apprehend John Kramer, the Jigsaw Killer, who indicates computer monitors showing eight people trapped in a house; including his only known survivor Amanda Young, and Eric's son Daniel. The other victims are Xavier, Gus, Jonas, Laura, Addison, and Obi. A nerve agent filling the house will kill them all within two hours, but John assures Eric that if he follows the rules of his own game, by simply talking with John, he will see Daniel again. At Kerry's urging, Eric agrees to buy time for the tech team to arrive and trace the video signal.