The Boondock Saints is a 1999 action crime drama film written and directed by Troy Duffy. The film stars Sean Patrick Flanery and Norman Reedus as fraternal twins Connor and Murphy McManus, who become vigilantes after killing two members of the Russian mob in self-defense. After a message from God, the brothers, together with their friend David Della Rocco, set out to rid their home city of Boston of evil. Meanwhile, they are pursued by FBI agent Paul Smecker (Willem Dafoe).

Duffy indicates the screenplay was inspired by personal experience, while living in Los Angeles. The film experienced a limited theatrical release of only five theaters for one week, and was met with poor critical reviews. Nevertheless, it proved divisive among viewers, developing both a large cult following, as well as enmity from viewers and critics who have called it a film undeserving of cult status. The film's cult following was mostly due to the efforts of Blockbuster Video, which made the film a "Blockbuster Exclusive." The ending credit sequence, which features the media asking the people of Boston, "Are the 'saints' good or evil", was shot by Mark Brian Smith, co-director of Overnight, a documentary film about the making of The Boondock Saints, and Troy Duffy himself.

Two Irish brothers accidentally killed mafia thugs. They turned themselves in and were released as heroes. They then see it as a calling by God and started knocking off mafia gang members one by one. Willem Dafoe plays the detective trying to figure out the killings, but the closer he was to catching the Irish brothers, the more he thinks the brothers are doing the right thing. Written by KevinYang(meowdragon@hotmail.com)

Irish brothers Connor & Murphy MacManus live and work in Boston. Feeling that God's will to rid Earth from all human Evil was given to them as a mission, they set out to do their divine deed. A public outcry is never heard, and even FBI agent Paul Smecker, who follows their trace of bloodshed, admits that the boys are doing exactly what he secretly always has wished to happen. Risking their lives for their beliefs of Veritas (truth) and Aequitas (justice), the Boondock Saints are hyped by the public, for they are doing good, which only few dare to admit. Written by Julian Reischl