Gas Light

Complete suspense.
Starring Ingrid Bergman; made two years after her hit in Casablanca.
This time, she plays a woman haunted by the past, and whose over-friendly husband is slowly trying to drive her insane. I think he did a really good job of acting perfectly cordial, kind, considerate, and horribly creepy at the same time.
The script is lacking, and the camera work, but the story is gripping. I also noticed that it took absolutely forever to drop a single hint at what's going on.
Reminiscent of Hitchcock or Shiamalan, but no jump-out spots...just suspense.
Watch it, enjoy it, and let me know what you think.