A little bit REAR WINDOW and a little bit GASLIGHT, it's a mighty fine noir that combines the detective and the psychological thriller. Stanwyck is always a joy to behold, Sanders gets to be wicked, and even Merrill is pretty good as the detective. There are a few sluggish portions of the film, but the opening and closing sequences are dynamite, as is the hospital scene. A lot of the credit belongs to ace cinematographer John Alton, master of shadows and light. The Nazi angle is a little silly.

Suspense! If that's what you want, this has it in bucketloads. I think it's probably the music that drives the mood of this film - it's exciting, vibrant, energetic and really helps to ramp up the tension at vital moments. Some great noir photography adds to the atmosphere, and although it's not a whodunit - we know who did it in the terrific opening scene - there's still a nice sense of mystery throughout the film. Special mention for the scene in the mental asylum, which is outstanding.