When prostitute Delilah Fitzgerald is disfigured by a pair of cowboys in Big Whiskey, Wyoming, her fellow brothel workers post a reward for their murder, much to the displeasure of sheriff Little Bill Daggett, who doesn't allow vigilantism in his town. Two groups of gunfighters, one led by aging former bandit William Munny, the other by the florid English Bob, come to collect the reward, clashing with each other and the sheriff.