Young man, Adam (Leigh Whannell), is waking up chained to the rustyuzupełnić pipe in the crumbling basement. On the other side he is uncovering the room other terrified współ-uwięzionego of man. A Lawrence Dr. is it Gordon (Cary Elwes). On the floor between them a dead man is laying in a pool of blood, calibre 38 keeping the gun in the motionless hand. None of men knows the reason for its kidnapping, but on the left microcassette they are finding the manual, according to which Dr. Gordon is supposed to kill Adam in the sequence of 8 next hours. If for him it will fail, not quite both men will die, it is also Allison, the Lawrenca wife, and their daughter will be killed. Dr. Gordon is reminding himself the lasting just investigation led by the Tappa detective (Danny Glover) and both realize that they are next victims of the psychopathic genius called "Jigsaw". In the sequence of only a few hours men must fit jigsaw puzzle pieces to themselves struggling growing, with the passage of time, with terror. The murderer left only a few pointers and two, too weak handsaws for them in order to incise steel cuffs, but the body strong enough in order to cut in two with them and bones.