The look and atmosphere in this film is so vivid that even viewed on TV it makes you feel as if you have been to Niagara Falls sometime in the early 1950s. The plot takes a deceptively leisurely pace but it builds to a gripping climax. It is worth the viewer's time & effort to stick with it to the end. Marilyn Monroe is radiantly treacherous & her performance is subtle and bears close watching beyond her obvious attractiveness. She should get a lot more credit for this picture than I've seen others give her. Joseph Cotten balances between being menacing & getting our pity & sympathy. Not all the performances are terrific but this movie is a gem that rewards the effort to stick with it to the end.

Excerpt from d-conley-1's review on IMdb HERE