The Lawman and the Songbird — Chap O'Keefe

Pinkerton detective Joshua Dillard is sent to a lawless Montana boomtown. He immediately sets his sights on the arrogant Blackie Dukes and his bunch. Then the safe at the Magnet saloon is robbed from right under his nose. Seven years later, Joshua returns as the town's marshal and decides that it's time to lay a ghost to rest.