A publisher is nearly framed for murder, but he appears to have been goaded by the blackmailer who has also blackmailed the publisher's wife.
Is Who Was Maddox? on Netflix? Unfortunately the movie Who Was Maddox? is not yet available on Netflix.
| Directing | Geoffrey Nethercott | Director |
| Production | Jack Greenwood | Producer |
| Writing | Edgar Wallace | Original Story |
| Writing | Roger Marshall | Screenplay |
| Sound | Bernard Ebbinghouse | Original Music Composer |
| Camera | James Wilson | Director of Photography |
| Editing | Derek Holding | Editor |
| Production | Ronnie Curtis | Casting Director |
| Art | John Blezard | Art Direction |
| Costume & Make-Up | Betty Glasow | Hairdresser |
| Costume & Make-Up | Benny Royston | Makeup Artist |
| Directing | Ted Lewis | Assistant Director |
| Production | Ron Fry | Production Manager |
| Sound | Ronald Abbott | Sound Recordist |
| Sound | Brian Blamey | Sound Editor |
| Sound | Sidney Rider | Sound Recordist |
| Camera | Gerry Massy-Collier | Camera Operator |