Ellen Hallit is in love with her playboy boss, Douglas Morrison, but is too timid to do anything about it. To help her, her roommate Chris decides to step in, and devises a plan. Chris follows Morrison on his trip to Sun Valley, Idaho and plays the overattentive female, hoping that he will send for Ellen (who often played his "fiancée" when he had a female he couldn't discourage otherwise.) Complications arise when Chris catches the eye of band leader Dick Layne, and finds herself caught in a triangle between the two men.
Is Duchess of Idaho on Netflix? Unfortunately the movie Duchess of Idaho is not yet available on Netflix.
| Camera | Charles Schoenbaum | Director of Photography |
| Sound | George Stoll | Music Director |
| Art | Edwin B. Willis | Set Decoration |
| Costume & Make-Up | Helen Rose | Costume Design |
| Sound | Douglas Shearer | Recording Supervision |
| Editing | Adrienne Fazan | Editor |
| Art | Arthur Krams | Set Decoration |
| Sound | Albert Sendrey | Orchestrator |
| Costume & Make-Up | Jack Dawn | Makeup Artist |
| Art | Malcolm Brown | Art Direction |
| Costume & Make-Up | Sydney Guilaroff | Hairstylist |
| Art | Cedric Gibbons | Art Direction |
| Sound | Skip Martin | Orchestrator |
| Crew | Jack Donohue | Choreographer |
| Production | Joe Pasternak | Producer |
| Directing | Robert Z. Leonard | Director |
| Writing | Jerry Davis | Screenplay |
| Writing | Dorothy Cooper | Screenplay |
| Sound | Floyd Huddleston | Songs |
| Sound | Al Rinker | Songs |
| Sound | Charles E. Wallace | Sound |
