The Boondock Saints (1999)

A pair of warm-blooded and pious Irish brothers offended the gang in self-defense, and the police station was acquitted in the name of self-defense. From then on, the two decided to fight the scum of society on their own, buy weapons to fight violence, and get rid of criminals with the help of their friend Locke (David Della Rocco). Federal detective Paul Mike (William Defoe Willem Dafoe) is in charge of solving the case, but the situation has changed unexpectedly after the gang leader "Dad Joe" (Carlotta Carlo Rota) hired the legendary gunman "Duke" (Billy Connolly Billy Connolly) to fight the McManus brothers.