London, 1929. Frank Webber, a very busy Scotland Yard detective, seems to be more interested in his work than in Alice White, his girlfriend. Feeling herself ignored, Alice agrees to go out with an elegant and well-mannered artist who invites her to visit his fancy apartment.
You can now watch Blackmail online on the following streaming providers in the United States.
| 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 |
