Originally Aired: May 8, 1960

Gunsmoke #422, "Wrong Man different story from #135,"

Marshal Matt Dillon receives a warning from lawman Blair about a dangerous killer named Jim Waddell who may be passing through Dodge City. Waddell is described as a smooth-talking, well-dressed man who never carries a gun but prefers to kill with a knife. Meanwhile, a charming stranger calling himself Jack Norman arrives in town and makes an immediate impression on Kitty Russell with his cultured manners and polite behavior, a refreshing change from the rough cowboys she usually encounters. When Norman gets into a poker dispute and pulls a knife to defend himself against accusations of cheating, Matt becomes suspicious and decides to hold him in jail.

The situation grows more complicated as Matt notices the striking similarities between Norman and Blair's description of the wanted killer Waddell. Both men are refined, well-mannered, knife-carrying Texans who avoid firearms. Despite Kitty's protests that Jack couldn't be a murderer and Norman's own insistence that Matt is making a grave mistake, the marshal keeps him locked up while waiting to hear back from Blair about the suspect's true identity.