Do you want to watch some film noir?
I hope so, because I have five films to suggest. Films about dames gone wrong, poor doomed saps, murders, sex and modern knights errant. I suppose, to me, noir films are shadowy films about darkness seeping in and seeping out. If you like these films, you might want to look a little more into the filmographies of Jacques Tourneur, Ida Lupino, Edgar Ulmer, Nicholas Ray, and John Sturges.
Meanwhile, beware of spoilers. I tried to keep some secrets, but in the end, I'm a femme fatale. I've always got my own game going.
Out Of The Past / Build My Gallows High (1947) (Jacques Tourneur)
Some people, most people even, think of Double Indemnity (1944) as the quintessential film noir, but my Double Indemnity is Out Of The Past. It stars Robert Mitchum as private detective Jeff Bailey. (90% of Mitchum's characters are named, “Jeff” no matter what IMDb says).