When her father is murdered, a cosmetics heiress becomes the next target of an unknown killer amid the international jet set.
| Production | Sidney Beckerman | Producer |
| Sound | Ennio Morricone | Original Music Composer |
| Art | Ted Haworth | Production Design |
| Camera | Freddie Young | Director of Photography |
| Editing | Bud Molin | Editor |
| Writing | Sidney Sheldon | Novel |
| Production | David V. Picker | Producer |
| Writing | Laird Koenig | Screenplay |
| Directing | Terence Young | Director |
| Costume & Make-Up | Enrico Sabbatini | Costume Design |
| Art | Dan Perri | Title Designer |
| Costume & Make-Up | Giancarlo De Leonardis | Hair Department Head |
| Costume & Make-Up | Antoine Garabedian | Makeup Department Head |
| Art | Dennis J. Parrish | Property Master |
| Sound | Gordon Everett | Sound Mixer |
| Sound | Lee Osborne | Sound Effects Editor |
| Production | Piero Amati | Unit Manager |
| Costume & Make-Up | Hasso von Hugo | Makeup & Hair |
| Costume & Make-Up | Nick Maley | Makeup Artist |
| Directing | Gianni Cozzo | Assistant Director |
| Sound | John Wilkinson | Sound Re-Recording Mixer |
| Production | Richard McWhorter | Associate Producer |
| Crew | François Doge | Stunt Driver |
| Directing | John Longmuir | First Assistant Director |
| Directing | Clemens Keiffenheim | Second Assistant Director |
| Sound | Richard Adams | Sound Effects Editor |
| Art | Fernando Valento | Construction Manager |
| Sound | Pierre Jalbert | Dialogue Editor |
| Camera | Trevor Coop | Focus Puller |
| Camera | Sergio Strizzi | Still Photographer |
| Editing | John Haggar | Assistant Editor |
| Camera | Chic Anstiss | Camera Operator |
| Costume & Make-Up | Giovanni Viti | Assistant Costume Designer |
| Sound | Milton Lustig | Music Editor |
| Lighting | John Fenner | Gaffer |
| Production | John Southwood | Location Manager |