Marilyn Monroe sizzles in this tense, masterful thriller. While the seductive Rose Loomis (Monroe) and her husband George vacation in a charming guest cabin at spectacular Niagara Falls, Rose and her lover plot to kill George. But things go terribly wrong, and soon, an innocent honeymooning couple find themselves swept up in the crime.

A susceptible young woman marries a suave, romantic man never suspecting that he is a murderous scoundrel, obsessed with finding the jewels hidden in her London home. She becomes the helpless victim as slowly, insidiously, he drives her to the brink of insanity