This is one of those 60 minute-sized 'Crime Does Not Pay' features made by the same producing-directing team of Bresler and Cahn that worked on the 'Crime' shorts. Arnold is a Lieutenant Detective trying to bust "paddyrollers" and other pickpockets taking servicemen for their dough during World War 2. Interesting little subject for the time. The pickpocket gang is led by Selena Royle as "Ma." There's also Tom Trout as her tough-talking son just out of prison and a squealy-voiced Dan Duryea as the other son. Totter is Trout's wife. Of course they eventually get busted by Arnold (by Arnold's use of chemically treated money with marks that show up only under ultra-violet light---a Crime Club gimmick). Arnold is imperturbable and grinning throughout, to the point of absurdity. Also absurd is the sight of Hume Cronyn in a bald-cap playing a pawn shop owner. But the film IS short so it gets by quickly enough to stay watchable.
Review of Main Street After Dark
