Between the events of 'Saw' and 'Saw II', a sick and desperate John Kramer travels to Mexico for a risky and experimental medical procedure in hopes of a miracle cure for his cancer, only to discover the entire operation is a scam to defraud the most vulnerable. Armed with a newfound purpose, the infamous serial killer returns to his work, turning the tables on the con artists in his signature visceral way through devious, deranged, and ingenious traps.

When Yadomi Jinta was a child, he was a central piece in a group of close friends. In time, however, these childhood friends drifted apart, and when they became high school students, they had long ceased to think of each other as friends. One of the friends from that group, Honma Meiko, now has a wish she asks Jinta to fulfil. The problem is, she can't remember what her wish is anymore.

Teenager Owen is just trying to make it through life in the suburbs when his classmate introduces him to a mysterious late-night TV show — a vision of a supernatural world beneath their own. In the pale glow of the television, Owen’s view of reality begins to crack.

Kyung-chul is a dangerous psychopath who kills for pleasure. Soo-hyeon, a top-secret agent, decides to track down the murderer himself. He promises himself that he will do everything in his power to take vengeance against the killer, even if it means that he must become a monster himself.

Two men wake up to find themselves shackled in a grimy, abandoned bathroom. As they struggle to comprehend their predicament, they discover a disturbing tape left behind by the sadistic mastermind known as Jigsaw. With a chilling voice and cryptic instructions, Jigsaw informs them that they must partake in a gruesome game in order to secure their freedom.

A wealthy author's second wife begins to suspect that her 12-year old stepson may have murdered his mother, who mysteriously died in a bathtub accident.

The chilling and relentless Jigsaw killer returns to terrorize the city once again. When a gruesome murder victim emerges with unmistakable traces of Jigsaw's sinister methods, Detective Eric Matthews is thrust into a high-stakes investigation. To his surprise, apprehending Jigsaw seems almost too easy, but what he doesn't realize is that being caught is merely another piece of Jigsaw's intricate puzzle.

The eccentric Oh Hyun Jae was a peerless criminal profiler until a bomb planted by a serial killer took the life of his young fiancée, causing him to become a recluse. When a serial killer long thought dead returns to terrorize the city, rising star of the police, Hwang Hwa Young, resolves to outwit the killer. To do so, she teams up with both Oh and the remarkable rookie cop Cha Soo Young, whose photographic memory may prove to be a powerful crime-fighting weapon.

Special Agent Strahm is dead, and Detective Hoffman has emerged as the unchallenged successor to Jigsaw's legacy. However, when the FBI draws closer to Hoffman, he is forced to set a game into motion, and Jigsaw's grand scheme is finally understood.

Following Jigsaw's grisly demise, Detective Mark Hoffman is commended as a hero, but Agent Strahm is suspicious, and delves into Hoffman's past. Meanwhile, another group of people are put through a series of gruesome tests.

A group of five young friends face a nightmare of torment at the hands of a depraved Texas clan.

A year has passed since Menma's ghostly return to the Super Peace Busters. Although the time they spent together during that summer was short, the five members reminisce about what happened as they each write a letter to their lost friend.

Jigsaw has disappeared. Along with his new apprentice Amanda, the puppet-master behind the cruel, intricate games that have terrified a community and baffled police has once again eluded capture and vanished. While city detective scrambles to locate him, Doctor Lynn Denlon and Jeff Reinhart are unaware that they are about to become the latest pawns on his vicious chessboard.

As a deadly battle rages over Jigsaw's brutal legacy, a group of Jigsaw survivors gathers to seek the support of self-help guru and fellow survivor Bobby Dagen, a man whose own dark secrets unleash a new wave of terror.

Generations of movie fans have thrilled to Saw's blood-curdling story of a serial killer who traps his victims in a sadistic game of survival. Game Changer takes you behind the scenes, as cast and crew reveal the stories behind the film that launched the most successful horror franchise in movie history.