Londen, 1929. Frank Webber, een zeer drukke Scotland Yard detective, lijkt meer geïnteresseerd te zijn in zijn werk dan in Alice White, zijn vriendin. Alice voelt zich genegeerd en gaat uit met een elegante en welgemanierde kunstenaar die haar uitnodigt in zijn chique appartement.
Nee, helaas is Blackmail nog niet beschikbaar op Netflix in Nederland.
| Writing | Alfred Hitchcock | Screenplay |
| Camera | Jack E. Cox | Director of Photography |
| Editing | Emile de Ruelle | Editor |
| Art | C. Wilfred Arnold | Art Direction |
| Directing | Alfred Hitchcock | Director |
| Directing | Frank Mills | Assistant Director |
| Writing | Charles Bennett | Theatre Play |
| Writing | Benn W. Levy | Dialogue |
| Sound | Jimmy Campbell | Original Music Composer |
| Sound | Reginald Connelly | Original Music Composer |
| Sound | Hubert Bath | Music Arranger |
| Sound | Harry Stafford | Music Arranger |
| Sound | John Reynders | Conductor |
| Writing | Michael Powell | Writer |
| Production | John Maxwell | Producer |
| Sound | Hubert Bath | Original Music Composer |
| Art | Norman G. Arnold | Art Direction |
| Sound | Dallas Bower | Sound Recordist |
| Sound | Harold V. King | Sound |
| Sound | Harry Miller | Sound Editor |
| Camera | Ronald Neame | Assistant Camera |
| Camera | Michael Powell | Assistant Camera |
| Camera | Derick Williams | Assistant Camera |
