Marian Forbes has been having an affair with her boss and when he drops her for another woman. In an act of jealousy and greed she convinces an acquaintance to murder her former lover and then impersonate him just long enough to get their hands on a large sum of money.
Is The 3rd Voice on Netflix? Unfortunately the movie The 3rd Voice is not yet available on Netflix.
| Writing | Hubert Cornfield | Writer |
| Production | Hubert Cornfield | Producer |
| Writing | Charles Williams | Novel |
| Directing | Hubert Cornfield | Director |
| Costume & Make-Up | Alma Johnson | Hairstylist |
| Directing | Willard Kirkham | Assistant Director |
| Sound | Johnny Mandel | Original Music Composer |
| Production | Harold E. Knox | Production Supervisor |
| Art | John B. Mansbridge | Art Direction |
| Art | Mac Mulcahy | Set Decoration |
| Production | Maury Dexter | Producer |
| Camera | Ernest Haller | Director of Photography |
| Editing | John A. Bushelman | Editor |
| Costume & Make-Up | Dick Hamilton | Makeup Artist |
| Directing | Frank Parmenter | Assistant Director |
