Humphrey Campbell is a private detective working for a small agency specializing in missing persons cases. In his latest case, he tracks down a missing heiress and then calls his boss, Oscar Flack, and tells him that he won't be bringing the heiress, Louise, home because he and Louise just got married and they're going on a honeymoon. Oscar tells Humphrey that an important case has come up - a rancher in Nevada's adult son has gone missing. Oscar convinces Humphrey to investigate and on their way to Reno, Humphrey and Louise stop at a bank and end up in the middle of a bank holdup led by one Red Harris. Then in Reno, Oscar convinces Humphrey to take the case even though Humphrey is disinclined to do so because the FBI are involved but Oscar sweetens the deal by promising Louise a fur coat. The whole plot becomes increasingly complicated with a slew of suspects. Chester Morris plays Humphrey as a wise cracking, fast talking character just like his more famous Boston Blackie character. And what an entertaining character it is. My favorite scene is when the milk drinking Humphrey orders a glass of milk from bartender Jack Norton. Norton's reaction to this request is a hoot especially since Norton is most famous for his bit roles playing a drunk although in real life Norton was a teetotaler. The whole movie is fun throughout. Jean Parker does a very nice job as the feisty Louise and she and Morris have a great chemistry together. It was also fun spotting some favorite character actors such as Dick Purcell, George J. Lewis, and Milburn Stone. Available at Internet Archives and YouTube, this movie is well worth seeking out.