Saw (2004)

After waking up in a tiny cell, two men find themselves victim of a serial killer who plays games with his victims and gives them one last chance to survive. If they wish to live, they each have to play their own game as the killer has told them on an audio script. As the film goes on, connections between the victims and the true identity of the never-showed-up killer are revealed.

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Adam Stanheight, a photographer, awakens in a bathtub in a large industrial bathroom. He gets out and finds himself chained at the ankle to a pipe. Dr. Lawrence Gordon, an oncologist, is chained to a pipe across the room, and between them lies a corpse, holding a revolver and a microcassette recorder. They each find a tape in their pocket, and Adam manages to retrieve the recorder. Adam's tape instructs him to escape the bathroom or he will die where he sits, and Lawrence's tape instructs him to kill Adam before six o'clock or not only will he die where he sits, but Alison and Diana, his wife and daughter, will die as well. Using a clue at the end of the tape, Adam finds a bag in the toilet tank containing two hacksaws, which they use to try cutting through their chains. Adam's saw breaks, and he throws it at the mirror in frustration. Lawrence realizes the hacksaws are meant for their feet and tells Adam that they have been captured by the Jigsaw Killer, who Lawrence is aware of because he was once a suspect.

Flashbacks show that five months earlier, while Lawrence was discussing a cancer patient named John Kramer, with some medical students and an orderly named Zep Hindle, he was approached by Detectives David Tapp and Steven Sing, who found his penlight at the scene of a Jigsaw game. His alibi cleared him, but he agreed to witness the testimony of a heroin addict named Amanda Young, the only known survivor of a Jigsaw game. In her game, a reverse beartrap was locked on her head and set to rip her jaws apart in one minute, but she killed her cellmate in order to retrieve the key from his stomach and remove the trap.

Other victims include Paul Leahy, who died trying to escape a caged-in maze lined with razor wire, and Mark Wilson, who had to obtain the antidote for a slow-acting poison in his body from a safe by locating the combination on the room's walls with a candle. Not only was he naked and covered in napalm, but he was also forced to walk across broken glass barefoot, and was burned alive when he fumbled with the candle.

In the present, Alison and Diana are held captive in their home by a man watching Adam and Lawrence through a camera hidden behind the bathroom's two-way mirror. The Gordons' house is simultaneously being watched by Tapp, who has become obsessed with finding Jigsaw. Flashbacks reveal that Tapp and Sing located Jigsaw's warehouse using Amanda's videotape, and saved a man who was bound to a chair with drills aimed at his neck. Jigsaw fled after slashing Tapp's throat with a concealed wrist blade, and Sing was killed by a shotgun trap while pursuing him. Tapp was then discharged for entering Jigsaw's lair without a warrant and began stalking Lawrence, convinced that he is Jigsaw. In the bathroom, Adam and Lawrence follow a clue and find a box containing a one-way cellphone, and two cigarettes. They attempt to use a "poisoned" cigarette to stage Adam's death, but this is proven false when Adam's chain suddenly shocks him.

Saw is a 2004 American independent horror film directed by James Wan. The screenplay, written by Leigh Whannell, is based on a story by Wan and Whannell. The film stars Cary Elwes, Danny Glover, Monica Potter, Michael Emerson, Ken Leung, Tobin Bell, and Leigh Whannell. It is the debut of Wan and Whannell and the first installment of the seven-part Saw franchise.

The film's story revolves around Adam (Whannell) and Lawrence (Elwes), two men who are chained in a dilapidated subterranean bathroom and are each given instructions via a microcassette recorder explaining how to escape. Adam is told he must escape the bathroom, while Lawrence is told to kill Adam before a certain time, or Lawrence's family will die. Meanwhile, police detectives investigate and attempt to find the victims' location and apprehend the mastermind behind the current "game" and several other similar incidents.

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