Adam, a photographer, awakens in a bathtub in a large dilapidated bathroom, chained at the ankle to a pipe. Lawrence Gordon, an oncologist, is chained to a pipe across the room. Between them is a corpse holding a revolver and a microcassette recorder. Both men find a tape in their pockets, and Adam is able to retrieve the recorder. Adam's tape urges him to escape the bathroom. Lawrence's tape tells him to kill Adam by six o'clock, or his wife and daughter will be killed and he will be left to die. Adam finds a bag containing two hacksaws inside a toilet, which they try to use to cut through their chains, but Adam's saw breaks and he throws it at the mirror in frustration. Lawrence realizes that the hacksaws are meant to be used on their feet, not their chains. He identifies their captor as the Jigsaw (Saw character), whom Lawrence knows of because he was once a suspect.