The film picks up where the previous installment left off, with Detective Mark Hoffman (played by Costas Mandylor) continuing the legacy of the Jigsaw Killer (John Kramer) by setting up traps and games for his victims. Meanwhile, a survivor named Bobby Dagen (played by Sean Patrick Flanery) has gained fame and fortune by claiming to have survived a Jigsaw trap and writing a self-help book about his experience.
In the climax, Hoffman becomes increasingly desperate to eliminate anyone who could expose his identity as the new Jigsaw killer. He sets up traps for Bobby and his associates, leading to a series of gruesome and deadly games.
As the plot unfolds, Bobby’s past catches up with him as his lies and deception are exposed. He is forced to confront the consequences of his actions and pay the ultimate price for his deceit.
In the resolution, Hoffman’s reign of terror comes to an end when he is finally confronted by Dr. Lawrence Gordon (played by Cary Elwes), a survivor of the original Jigsaw traps who has been plotting his revenge. Gordon captures Hoffman and leaves him to die in the same bathroom where the first “Saw” film began.
The film concludes with a final twist revealing that Dr. Gordon has become the new Jigsaw killer, taking up John Kramer’s mantle and continuing his legacy of testing and punishing those he deems unworthy of life.
“Saw 3D” is praised for its inventive traps, shocking twists, and satisfying conclusion to the long-running “Saw” series. It delivers the trademark gore and suspense that fans of the franchise have come to expect, while also offering closure to many of the lingering plot threads from previous films.