Niagara is a morbid, cliched expedition into lust and murder. The atmosphere throughout is strained and taxes the nerves with a feeling of impending disaster. Focal point of all this is Marilyn Monroe, who’s vacationing at the Falls with hubby Joseph Cotten.
A Korean War vet, Cotten is emotionally disturbed and his eye-filling blonde wife deliberately goes out of her way to irritate him. She flaunts her physical charms upon mere strangers, taunts him with disparaging remarks and has a clandestine affair in progress with Richard Allan.
These incidents are noticed by Jean Peters and Casey Adams. A honeymooning couple, they’re stopping at the same cabins, and it’s only too obvious that they’ll be involved in the events to come. First, a plot of Monroe and Allan to kill Cotten backfires when the latter shoves his attacker over the Falls. Cotten then hunts down Monroe and strangles her. Now, pure theatrics takes over.
The camera lingers on Monroe’s sensuous lips, roves over her slip-clad figure and accurately etches the outlines of her derriere as she weaves down a street to a rendezvous with her lover. As a contrast to the beauty of the female form is another kind of nature’s beauty – that of the Falls. The natural phenomena have been magnificently photographed on location.