[Picture: Don’t Bother to Knock poster]
Fox finally gave her a starring role in 1952 with Don't Bother to Knock, in which she portrayed a deranged babysitter who attacks the little girl in her care. It was a cheaply made B-movie, and although the reviews were mixed, they claimed that it demonstrated Monroe's ability and confirmed that she was ready for more leading roles. Her performance in the film has since been noted as one of the finest of her career. It was also Monroe's 12th film.