What parents need to know
Parents need to know that this is a grim, downbeat "film noir" narrative. Evil doesn't triumph, but the main character makes bad choices and is pretty much doomed from the inception. He falls for another man's wife and tries to help her kill her husband (the woman also turns out to embody the worst sort of wicked-stepmother image, late in the story). There is nothing explicitly sensual in this narrative, even as much later "steamy erotic thrillers" copied the vibe and used it as an excuse for graphic sex and nudity. This one would merit just a PG today.