|“||You can free yourself from your obsession if you only let go of the truth. Or you can continue to pursue the truth, giving into your obsession and throwing all your lives away.||”|
— Jigsaw's ultimatum[src]
After having been shot in the chest by Zep Hindle, Detective David Tapp was found unconscious by John Kramer, better known as the Jigsaw Killer, who took him to the abandoned Whitehurst Insane Asylum, where he treated his wounds and afterwards forced him to participate in one of his deadly games. In order to overcome his obsession with apprehending the killer and ending his games, Tapp had to face a series of tests. As he made his way through the dilapidated building, he managed to pass all of his tests and was ultimately forced to make a last choice. He found himself in front of two doors, one with the word "Freedom", the other one with the word "Truth" written on them. He could either choose to let go of his obsession with Jigsaw in exchange for the freedom of all remaining victims who were still trapped at Whitehurst, including himself, or he could decide to uncover the truth about Jigsaw and thereby condemn all the other prisoners. Depending on the player's choice, there were two different outcomes:
|“||This is the end, Detective, the end of all that you know. You have saved everyone that you could save. Their lives were yours to do with as you wished. You're here, but have you overcome your obsession? You can save everyone who is left in this asylum. You can grant them their freedom. You can free yourself from your obsession if you only let go of the truth. Or you can continue to pursue the truth, giving into your obsession and throwing all your lives away.||”|
— David Tapp's tape[src]
- Freedom: Tapp decided to choose freedom and escaped from the asylum, freeing the rest of the people trapped inside. He returned to his apartment and reviewed newspaper clippings, which labeled him a hero by those who survived their tests in the asylum. Despite this Tapp couldn't overcome his obsession with Jigsaw and ultimately commited suicide by shooting himself in the head. This ending was later confirmed to be the canon ending.
- Truth: Tapp couldn't overcome his obsession and decided to continue to go after Jigsaw. He pursued a mysterious cloaked figure who he believes to be Jigsaw. After catching and brutally beating the figure, Tapp realized that it was actually Melissa Sing, who he had saved from a trap earlier. An audio tape explained that Jigsaw had put her in charge of keeping Tapp alive and making sure he followed the rules of Jigsaw's game after Tapp rescued her, in order to save her son, who had been abducted by Jigsaw as well. Additionally, Jigsaw's accomplice, Pighead, had sewn her mouth shut to avoid her from warning Tapp about her test. Attempting to run away from Tapp, Melissa desperately charged through a nearby door rigged with a shotgun, killing her in the same way as her late husband, Steven Sing. Tapp suffered a mental breakdown as a result of her death and was taken to an asylum as he was hallucinating and therefore believed he was still trapped in one of Jigsaw's games. (Saw: The Video Game)