Doris Day
I adore Doris Day and even love her during those 'tantrum' scenes she was so famous for but her performance in Midnight Lace was probably her most annoying one. I couldn't stand her voice or her acting during the hysteria scenes!
I understand perfectly how she must be feeling - helpless, alienated and completely alone in dealing with this unknown assailant and she conveys this part very well (when she is not in hysterics) so I wouldn't say it's her worst performance.
I have around 20 minutes left to finish this movie but not sure how much more screaming Doris I can take! Thank god, she never did horrors!