In 1903, Doctor Huntington Bailey meets a friendly older lady during a train trip. She tells him that she is going to visit her brother Nick and his lovely young wife Allida. Once in New York, Bailey hears that his train companion suddenly died. Shortly afterward, he meets the strange couple and gets suspicious of Nick's treatment of his wife.
| Writing | Warren Duff | Screenplay |
| Writing | Margaret Carpenter | Novel |
| Directing | Jacques Tourneur | Director |
| Camera | Tony Gaudio | Director of Photography |
| Production | Robert Fellows | Executive Producer |
| Crew | Vernon L. Walker | Special Effects |
| Art | Albert S. D'Agostino | Art Direction |
| Sound | John E. Tribby | Sound Recordist |
| Production | Warren Duff | Producer |
| Sound | C. Bakaleinikoff | Music Director |
| Editing | Ralph Dawson | Editor |
| Sound | James G. Stewart | Sound Re-Recording Mixer |
| Art | Jack Okey | Art Direction |
| Costume & Make-Up | Edward Stevenson | Costume Design |
| Directing | Dewey Starkey | Assistant Director |
| Sound | Roy Webb | Original Music Composer |
| Costume & Make-Up | Leah Rhodes | Costume Design |
| Art | Darrell Silvera | Set Decoration |
| Art | Claude E. Carpenter | Set Decoration |
