Saw 3D (also known as Saw: The Final Chapter) is a 2010 American 3D horror film directed by Kevin Greutert and written by Patrick Melton and Marcus Dunstan. It is the seventh installment in the Saw film series. The film stars Tobin Bell, Costas Mandylor, Betsy Russell, Sean Patrick Flanery, and Cary Elwes. It also featured the final film appearance of Chester Bennington before his death in 2017. The plot follows a man who, after falsely claiming to be a survivor of one of the Jigsaw Killer's games in order to become a local celebrity, finds himself part of a real game where he must save his wife. Meanwhile, Jill Tuck informs the Internal Affairs that rogue Detective Mark Hoffman is the man responsible for the recent Jigsaw games, and Hoffman hunts her down.
A sequel was planned, but the decrease in the box office performance for Saw VI compared to previous installments led to Saw 3D being the final planned film in the series, and the plot concept for Saw VIII being incorporated into Saw 3D. Saw V director David Hackl was to direct the film, but two weeks before filming Lionsgate announced that Greutert, who directed the sixth film, would direct. Principal photography took place in Toronto, Ontario from February to April 2010 and was shot with the SI-3D digital camera system, as opposed to shooting with traditional cameras and later transferring to 3D in post-production.
Saw 3D was originally scheduled to be released in the United States on October 22, 2010, by Lionsgate, but was pushed back a week from its original release date of October 22, 2010, to October 29, 2010; it was released a day earlier in the United Kingdom and Australia. Saw 3D opened at number one making over $22.5 million. It was followed by an eighth film, Jigsaw, in 2017.
Dr. Lawrence Gordon has survived his test after sawing off his foot to escape the bathroom and along the way, he cauterizes his ankle stump with a steam pipe. Five years later, another game takes place in a home improvement storefront of a public square. Brad and Ryan are bound to opposite sides of a worktable secured to a sliding carriage with buzzsaws while their mutual lover Dina is suspended above a third saw. The men have sixty seconds to shove the saws into their opponent to save Dina, who had manipulated both of them into fulfilling her needs by committing crimes. Realizing her betrayal, Ryan and Brad concede a truce and they drive the sawblade towards Dina, dissecting her.
After witnessing Mark Hoffman's survival from his trap, Jill Tuck seeks help from Internal Affairs detective Matt Gibson and offers to incriminate Hoffman in exchange for protection and immunity. Meanwhile, Hoffman abducts a gang of skinhead white supremacists and places them in a trap at an abandoned junkyard that kills all four of them. He also captures Bobby Dagen, a self-help guru who achieved fame and fortune by falsifying a story of his own survival. Bobby awakens in an abandoned psychiatric hospital and is informed that he has one hour to save his wife Joyce, who is chained to a steel platform that gradually pulls her down as she watches Bobby's progress. After escaping his cage hanging over a floor of spikes, Bobby navigates his way through the asylum, attempting to complete his other tests and to rescue Nina, his publicist; Suzanne, his lawyer; and Cale, his best friend, all who knew of Bobby's lies and aided him in fabricating his story. Despite his efforts, all of them are killed in their respective traps. Bobby eventually unlocks the door with the combination from his upper wisdom teeth and reunites with his wife.
Gibson discovers the location of Bobby's game and sends a SWAT team, who are sealed in another room and killed by toxic gas. Finding Hoffman's command center, Gibson realizes that Hoffman gained access to the police station during the games, having been brought into the morgue in a body bag with the intent of hunting down Jill. Before he is able to warn the station, Gibson is killed by an automatic turret gun along with both of his men. Meanwhile, Bobby is forced to reenact his supposed escape from the trap he survived, by driving two hooks through his pectoral muscles and hoisting himself above the ceiling to deactivate Joyce's trap. However, before Bobby is able close the circuit, the hooks tear through his skin and he falls, unable to continue. As the time expires, a brazen bull capsule closes around Joyce and incinerates her. Elsewhere, Hoffman infiltrates the police station, killing everyone in his path before reaching Jill, and executing her with the original Reverse Beartrap.
Hoffman then destroys his workshop and begins to leave town but is subdued by three pig-masked figures; the leader reveals himself to be Dr. Gordon, now an accomplice to Jigsaw. Gordon shackles Hoffman in the same bathroom where he was tested, throwing away the hacksaw he had used to saw his foot off and sealing the door, leaving Hoffman to die.