Day of the Bad Man (1958)

The vicious Hayes clan amble into town on the day Judge Jim Scott is expected to sentence murderer Rudy Hayes to hang. Scott, who doesn't wear a gun, seems unconcerned and businesslike, even when Charlie Hayes makes an explicit death threat against him. But the townsfolk start wondering how much bloodshed one hanging is worth. Complicating factor: the sheriff, Scott's chief ally, is also the secret lover of Scott's fiancee Myra...