While touring abroad in Europe, beautiful American skydiver Fathom Harvill gets wrapped up in international intrigue when Scottish spy Douglas Campbell recruits her to help him on a secret mission. Before long, Fathom realizes that no one around her, including the mysterious Peter Merriweather, can easily be trusted, leading to various adventures that involve bull fighting, beaches and, of course, romance.
| Directing | Leslie H. Martinson | Director |
| Writing | Lorenzo Semple Jr. | Screenplay |
| Writing | Larry Forrester | Novel |
| Camera | Michael Walter | Key Grip |
| Camera | Douglas Slocombe | Director of Photography |
| Editing | Max Benedict | Editor |
| Art | Maurice Carter | Art Direction |
| Costume & Make-Up | Alan Brownie | Makeup Artist |
| Costume & Make-Up | Joan Smallwood | Hairdresser |
| Costume & Make-Up | Freddie Williamson | Makeup Artist |
| Directing | David Tringham | Assistant Director |
| Sound | Jonathan Bates | Sound Editor |
| Sound | Cyril Collick | Sound Recordist |
| Crew | Donna Garrett | Stunt Double |
| Camera | Chic Waterson | Camera Operator |
| Costume & Make-Up | Kiki Byrne | Costume Design |
| Costume & Make-Up | Bridget Sellers | Wardrobe Supervisor |
| Editing | Elizabeth Thoyts | Assistant Editor |
| Sound | John Dankworth | Conductor |
| Art | Maurice Binder | Title Designer |
| Sound | John Dankworth | Original Music Composer |
