Shirley Grey is one of those bored society debs who gets hooked up with gangster Charles Sabin for a night of adventure. When he gets gunned down, and she's holding the half-million dollars worth of gems, other gangsters like J. Carroll Naish and Ward Bond come sniffing around.... and they're not the sort to say please and then stifle their disappointment and go away. Neither is Ralph Bellamy in his fourth appearance as Inspector Steve Trent. He's been trying to put Naish away for years, and he thinks he has him when Naish kidnaps Miss Grey!
It's a solid little B mystery, with some actually interesting situations, and gangsters willing to use brains as well as guns. Of course, with the Production Code being enforced, this was a necessity, as was Naish shooting someone just out of the frame, while Miss Grey looks horrified. That's some intelligent direction, which is hardly surprising that the director is Ross Lederman, one of those intelligent directors who never moved out of the B movies. Fortunately there's enough talent in front of and behind the camera to make this one work.