This movie is a solid noir, though more of a drama than a thriller like many of its contemporaries. It exchanges much of the standard sordid noir material for a tragic scam gone awry. The main characters are more sympathetic than good, and it ultimately amounts more to a cautionary tale than thriller or adventure.
Closest comparison: It’s like The Woman in the Window by way of Detour.
Setting: Drama
Plot: Mistaken Identity
Tone: Noir