A beautiful babysitter (Marilyn Monroe) begins an affair with one of the guests (Richard Widmark) in the hotel where she is a live-in babysitter. but when the child she cares for interrupts their lovemaking, Monroe becomes a dangerous madwoman. Also starring Anne Bancroft, the chilling, provocative "Don't Bother To Knock" brilliantly showcases Monroe in a rare portrayal of a truly dark character.