When his wife stops writing to him and his letters are returned unanswered, Dan becomes extremely concerned about her welfare. He returns home but is only able to meet with her briefly before she is found murdered. Dan is the obvious suspect but has only 36 hours to find out who murdered her. In so doing he uncovers a shocking catalogue of his wife's past affairs and an identity that he knew nothing about.
Unfortunately the movie 36 Hours is not yet available on HBO Max.
| Writing | Steve Fisher | Screenplay |
| Production | Anthony Hinds | Producer |
| Sound | Ivor Slaney | Original Music Composer |
| Camera | Walter J. Harvey | Director of Photography |
| Directing | Montgomery Tully | Director |
| Editing | James Needs | Editor |
| Art | J. Elder Wills | Art Direction |
| Costume & Make-Up | Nina Broe | Hairdresser |
| Costume & Make-Up | Philip Leakey | Makeup Artist |
| Production | John 'Pinky' Green | Production Manager |
| Directing | Jimmy Sangster | Assistant Director |
| Sound | Bill Salter | Sound Recordist |
| Sound | Percy Britten | Boom Operator |
| Camera | Len Harris | Camera Operator |
| Camera | Tom Friswell | Clapper Loader |
| Camera | Harry Oakes | Focus Puller |
| Costume & Make-Up | Molly Arbuthnot | Wardrobe Master |
| Editing | Henry Richardson | Editorial Services |
| Sound | Ivor Slaney | Conductor |
| Crew | Malcolm Arnold | Additional Music |
| Sound | John Hollingsworth | Music Supervisor |
| Directing | Renée Glynne | Continuity |
| Crew | Robert L. Lippert | Presenter |
| Production | Jean Tisdall | Production Secretary |
