If the noirish gothic-romance scenario appeals to you, here are three lesser known, but worthy, films by notable auteurs:

Experiment Perilous (Jacques Tourneur) - 1944
My Name is Julia Ross (Joseph H Lewis) - 1945
The Strange Woman (Edgar G Ulmer) - 1946

And, while you're at it, have a look at the marvelous British Gaslight (1940 - Thorold Dickinson), which preceded the US version by four years.