An innocent project transforms into a perilous nightmare when researcher Susan Roberts arrives in France in search of information on a deceased composer.
Unfortunately the movie Crescendo is not yet available on HBO Max.
| Directing | Alan Gibson | Director |
| Production | Michael Carreras | Producer |
| Writing | Alfred Shaughnessy | Screenplay |
| Writing | Jimmy Sangster | Screenplay |
| Sound | Malcolm Williamson | Original Music Composer |
| Camera | Paul Beeson | Director of Photography |
| Art | Scott MacGregor | Art Direction |
| Costume & Make-Up | Stella Morris | Makeup Artist |
| Production | Hugh Harlow | Production Manager |
| Editing | Chris Barnes | Editor |
| Costume & Make-Up | Ivy Emmerton | Hairstylist |
| Costume & Make-Up | Rebecca Breed | Wardrobe Master |
