No one was better at solving puzzles than Los Angeles police detective John St. John. That's why he was handed the nickname "Jigsaw", as his amazing deductive abilities and interpretation of clues led him to solve a series of baffling murders. Sam Donner was St. John's younger partner, and Maggie was an elementary school teacher whom Jigsaw dated.
A criminal gets out of jail vowing revenge on those who testified against him...