Rose Loomis and her older, gloomier husband, George, are vacationing at a cabin in Niagara Falls. The couple befriend Polly and Ray Cutler, who are honeymooning in the area. Polly begins to suspect that something is amiss between Rose and George, and her suspicions grow when she sees Rose in the arms of another man. While Ray initially thinks Polly is overreacting, things between George and Rose soon take a shockingly dark turn.
Is Niagara on Netflix? Unfortunately the movie Niagara is not yet available on Netflix.
| Writing | Walter Reisch | Writer |
| Writing | Richard L. Breen | Writer |
| Directing | Henry Hathaway | Director |
| Writing | Charles Brackett | Writer |
| Production | Charles Brackett | Producer |
| Sound | Sol Kaplan | Original Music Composer |
| Camera | Joseph MacDonald | Director of Photography |
| Editing | Barbara McLean | Editor |
| Art | Lyle R. Wheeler | Art Direction |
| Costume & Make-Up | Dorothy Jeakins | Costume Design |
| Art | Stuart A. Reiss | Set Decoration |
| Sound | Lionel Newman | Music Director |
| Costume & Make-Up | Ben Nye | Makeup Artist |
| Art | Maurice Ransford | Art Direction |
| Sound | Roger Heman Sr. | Sound |
| Sound | Edward B. Powell | Orchestrator |
| Costume & Make-Up | Allan Snyder | Makeup Artist |
| Costume & Make-Up | Lillian Ugrin | Hairstylist |
| Sound | W.D. Flick | Sound |
| Visual Effects | Ray Kellogg | Visual Effects |
| Editing | Lyman Hallowell | Assistant Editor |
| Costume & Make-Up | Lynn F. Reynolds | Makeup Artist |
| Crew | Polly Burson | Stunts |
| Editing | Leonard Doss | Color Timer |
| Directing | Rose Steinberg | Script Supervisor |
| Production | Abe Steinberg | Unit Production Manager |
| Directing | Gerd Oswald | Assistant Director |
| Directing | Jack Sonntag | Assistant Director |
| Camera | Jacques R. Marquette | Assistant Camera |
| Camera | Felix Trimboli | Camera Operator |
| Costume & Make-Up | Charles LeMaire | Wardrobe Coordinator |
| Costume & Make-Up | Sam Benson | Wardrobe Supervisor |
