Wonderful Movie...keeps you guessing as to who is tormenting Doris Day. Scary at times. .Really worth watching. Doris Day wears so many beautiful outfits During the filming Doris has to come down the staircase and finding out no one believes her she gets hysterical. In her autobiography..it is mentioned that she drew on her past bad experiences and 'reel' life became 'real' life...she collapsed.....