Saw

Saw is an American horror media franchise created by James Wan and Leigh Whannell, which began with the eponymous 2004 film and quickly became a worldwide pop culture phenomenon. The franchise has expanded from films into other media, including video games, comic books, music, theme park attractions, and merchandising including toys, masks, and clothing. Saw is the sixth highest-grossing horror franchise of all-time, and was named by Guinness as "the most successful horror franchise in history" in 2010.

The series revolves around the fictional serial killer, John "Jigsaw" Kramer. Kramer was introduced briefly in Saw and developed in more detail in the subsequent films. Rather than killing his victims directly, he traps them in life-threatening situations that he refers to as "tests" or "games" to test their will to survive through physical or psychological torture, believing that if they survive, they will be "rehabilitated".