Detective Kelly is tragically murdered, and seasoned FBI agents Stram and Perez are tasked with investigating. In order to help Detective Hoffman find out the real murderer, they had to step into the horror room designed by "Jigsaw" again and try to find the answer to the puzzle. At this time, the commander of the anti-terrorist SWAT team, Rigg, was suddenly kidnapped and caught in a life-and-death game. He must clear his confusion through layers of deadly levels and serial traps within 90 minutes, or escape with his own life. God, or there is only one dead end.
Rigg's footprints traveled almost all over the city, but more and more dead bodies were left behind him. Officer Hoffman and two FBI agents, through a long list of hidden clues, finally found Jill Tucker, the ex-wife of the "Puzzle Killer", whose real name was John Kramer. There, the origins of his sins will be revealed little by little, and the true intentions and sinister plans of a doll master will be revealed to the world.
View more about Saw IV reviews
