Here's what I wrote about this 11 years ago - just a hint of SPOILERS so you know
After the very intense and downbeat Fury and You Only Live Once, Fritz Lang's third American film seems something of an anomaly for the director: a semi-comic hoodlum farce with musical moments, some of them courtesy of an (uncredited) Kurt Weill, and starring early tough-guy stalwart George Raft and the leading lady of the two previous Hollywood Lang pictures, Sylvia Sidney. An odd combination of elements, with even some Capra-esquire screwball thrown in, and yet on the whole it works. Raft and Sidney are both ex-cons trying to go straight working in a big department store owned by kindhearted Mr. Morris (Harry Carey) who fall in love; but Raft doesn't know that Sidney's a parolee, while Sidney knows his secret. They have to keep their eventual marriage quiet from everyone, and humor ensues with Sidney's efforts to do so; eventually Raft is lured into a plot by some of his ex-con buddies to rob the store that has helped them out so much and Sidney has to come in to save the day.
And odd film, as I say, with a proto-feminist very strong female lead by the always wonderful Sylvia Sidney, great photography by Charles Lang, and a noirish downbeat feel pervading an often sunny and humorous plot line, the Langian inevitability of fate and of returning to one's worst impulses never more than a heartbeat away. Unjustly neglected, seen on a decent enough quality rental VHS.
Wouldn't mind seeing it again, certainly atypical in some ways for Lang, but the 30s were a golden age for the kind of mixing of genres we see here, so maybe not so surprising either.