Based on the story "Mob Rule" by Norman Krasna. Joe Wilson and Katherine Grant are in love, but he doesn't have enough money for them to get married. So Katherine moves across the country to make money. But things go disastrously wrong for Joe when he stops in a small town and is mistaken for a wanted murderer. Through the course of the movie, Fritz Lang shows us how a decent and once civilized man can become a ruthless and bitter man.