Ann Hamilton is in de zevende hemel als zij met de rijke industrieel Alan Garroway trouwt. Al snel taant het geluk omdat zij zich meer en meer in de reeds jaren verdwenen broer van Alan, Michael, verdiept. Ze heeft namelijk het gevoel dat Alan zijn gehate broer wel eens vermoord zou kunnen hebben...
Nee, helaas is Undercurrent nog niet beschikbaar op Netflix in Nederland.
| Directing | Vincente Minnelli | Director |
| Writing | Thelma Strabel | Story |
| Writing | Edward Chodorov | Screenplay |
| Production | Pandro S. Berman | Producer |
| Sound | Herbert Stothart | Original Music Composer |
| Camera | Karl Freund | Director of Photography |
| Editing | Ferris Webster | Editor |
| Costume & Make-Up | Mel Berns | Makeup Department Head |
| Costume & Make-Up | Irene | Costume Supervisor |
| Art | Cedric Gibbons | Art Direction |
| Art | Randall Duell | Art Direction |
| Art | Edwin B. Willis | Set Decoration |
| Costume & Make-Up | Sydney Guilaroff | Hair Designer |
| Costume & Make-Up | Jack Dawn | Makeup Designer |
| Art | Solly Martino | Props |
| Sound | Herbert Stothart | Conductor |
| Sound | Albert Sendrey | Orchestrator |
| Sound | André Previn | Music Supervisor |
| Crew | Mario Castelnuovo-Tedesco | Additional Music |
| Crew | John Daheim | Stunt Double |
| Sound | Douglas Shearer | Sound Director |
| Art | Mentor Huebner | Production Illustrator |
| Directing | Norman Elzer | Assistant Director |
| Production | Jack Gertsman | Unit Manager |
| Crew | Katherine Doyle | Stand In |
