the first installment of a third rate detective series and feature a former safe cracker and blackie ( chester morris ) and his sidekick the runt ( charles wagenheim ) and and the impatient inspector farraday ( richard lane ) . crime get pin on blackie so he have to sort them out . this time he acquire a pretty lady ( rochelle hudson ) when he commandeer her car and and she almost a match for him . with a modicum of witty repartee and some excellent carnival location and and an unusual villain ( a master spy whose cover be play a sideshow mechanical man ) and this one might have ascend from third to second rate and be it not for morris acting ( mostly a matter of flash a grin that look too wide for his face ) and his hat ( it too small brim accentuate his big square face and make him look stupid amongst all the elegant and wide brim hat wear by everybody else and even the weaselly villains ) .