The Unsuspected
directed by Michael Curtiz
This 1947 film straddles that line between noir and murder mystery. It's entertaining though there isn't that much mystery about the murderer's identity. Back then, some people still accepted Freud's/Jung's theories of a child's initial subconscious sexual attraction to his or her opposite sex parent.
My non-expert understanding of these theories is that many have been discredited and disproven or are out of favor for other reasons. Even so this film references them, suitably repressed and hidden for the mores of 1947 America. But they're hard to miss.
Even though the story is not original the film's shadow, smoke, and fog cinematography is simply too cool for words. And the dialogue, written largely by Bess Meredyth, Curtiz's wife, again gives the lie to the idea that successful women characters were only to be found in our modern day and/or only talk like or act like men.