The Boondock Saints is a 1999 vigilante action thriller film written and directed by Troy Duffy in his feature directorial debut. Starring Willem Dafoe, Sean Patrick Flanery, Norman Reedus, David Della Rocco, and Billy Connolly, the film follows Irish fraternal twin brothers Connor and Murphy MacManus, who become vigilantes after killing two members of the Russian mafia in self defense. After both experience an epiphany, the twins, together with their best friend "Funny Man" Rocco (Rocco), set out on a mission to rid Boston of the criminal underworld in the name of God, all the while being pursued by FBI Special Agent Paul Smecker (Dafoe).