There are a number of ways you can look at this movie, but for me it's a film about a nice girl who can't catch a break with guys. The underrated Lizabeth Scott is effective as a nice girl who's too sexy for her own good; she made me think of the famous Jessica Rabbit line, "I'm not bad, I'm just drawn that way."
Unfortunately, the men in Lizabeth's life are a psycho stalker, beautifully played with understated menace by Raymond Burr, a cheater having a mid-life crisis, and a jailbird. And my impression is every one of them would blame Lizabeth for their own failings.
Taken with the film's other major female character, who has man problems of her own, this movie thinks little of men (unless they are very young or very old), and pretty highly of women.
For me the standout performances were Burr and Scott, but the funny thing about this movie is that, outside of Burr, no one here at IMDb seems to agree much about who's good and who isn't.
While noir films are associated with the detective genre, what makes something noir is its exploration of the darkness within its characters souls and the awful things people are capable of, and this movie takes that on very effectively. It's not a great movie, but it keeps you interested.