Virginia Cunningham (Olivia de Havilland) finds herself in a state insane asylum... and cannot remember how she got there. In flashback, her husband Robert relates their courtship, marriage, and her developing symptoms.

Stephen King says this film terrified him as a child, because he felt that he could go crazy at any moment (and worst of all, not even be aware that he was crazy). And, indeed, there is something terrifying about this film. While many films have taken place in mental hospital, I think very few really address how normal most mentally ill people are most of the time, or the fine balance between sane and insane.

I do not know much about Olivia de Havilland, but she really pulled all the stops here. If she is capable of this level of intensity, she probably should have been a bigger star than she was.