After a rapid engagement, a dowdy daughter of a chemist weds an industrialist, knowing little of his family or past. He transforms her into an elegant society wife, but becomes enraged whenever she asks about Michael, his mysterious long-lost brother.
You can now watch Undercurrent online on the following streaming providers in the United States.
| Directing | Vincente Minnelli | Director |
| Production | Pandro S. Berman | Producer |
| Camera | Karl Freund | Director of Photography |
| Writing | Edward Chodorov | Screenplay |
| Sound | Herbert Stothart | Original Music Composer |
| Editing | Ferris Webster | Editor |
| Writing | Thelma Strabel | Story |
| Costume & Make-Up | Mel Berns | Makeup Department Head |
| Costume & Make-Up | Irene | Costume Supervisor |
| Art | Edwin B. Willis | Set Decoration |
| Art | Randall Duell | Art Direction |
| Costume & Make-Up | Jack Dawn | Makeup Designer |
| Art | Cedric Gibbons | Art Direction |
| Costume & Make-Up | Sydney Guilaroff | Hair Designer |
| Art | Solly Martino | Props |
| Sound | Albert Sendrey | Orchestrator |
| Sound | Douglas Shearer | Sound Director |
| Art | Mentor Huebner | Production Illustrator |
| Directing | Norman Elzer | Assistant Director |
| Sound | Herbert Stothart | Conductor |
| Crew | Mario Castelnuovo-Tedesco | Additional Music |
| Sound | André Previn | Music Supervisor |
| Crew | John Daheim | Stunt Double |
| Production | Jack Gertsman | Unit Manager |
| Crew | Katherine Doyle | Stand In |
