Unforgiven (1992)

Little Bill Daggett (Gene Hackman), a sadistic, dictatorial sheriff, enforces gun control on a tiny frontier town, doling out his own brand of due process as he sees fit. When he denies justice to the prostitutes of the town brothel, one of whom has been slashed by a client, the women hire Bill Munny (Eastwood), a reformed gunslinger, to gain vengeance. However, Munny must contend with his new moral code in the face of revisiting the life he left behind.