A reformed drug addict travels to Italy to find out who murdered his aunt.
| Directing | Richard C. Sarafian | Director |
| Writing | Paul Dehn | Writer |
| Writing | John Bingham | Novel |
| Production | John R. Sloan | Producer |
| Production | Paul Dehn | Associate Producer |
| Art | Ray Simm | Art Direction |
| Sound | Johnny Harris | Original Music Composer |
| Editing | Malcolm Cooke | Editor |
| Costume & Make-Up | Patricia McDermott | Hairstylist |
| Camera | Oswald Morris | Director of Photography |
| Costume & Make-Up | Phyllis Dalton | Costume Design |
| Production | Harvey Woods | Casting |
| Costume & Make-Up | Bob Lawrance | Makeup Artist |
| Sound | Ken Ritchie | Sound Recordist |
| Costume & Make-Up | Jean Fairlie | Wardrobe Supervisor |
| Production | Mara Blasetti | Production Manager |
| Production | Robert Simmonds | Location Manager |
| Lighting | Ron Pearce | Electrician |
| Directing | William P. Cartlidge | Assistant Director |
| Sound | Dino Di Campo | Sound Editor |
| Camera | Jimmy Turrell | Camera Operator |
| Lighting | Ron Pearce | Gaffer |
| Production | Basil Rayburn | Production Supervisor |
| Costume & Make-Up | Charles Guerin | Wardrobe Master |
| Editing | Peter Watson | Assistant Editor |
| Directing | Josephine Knowles | Continuity |
| Art | Vic Simpson | Construction Manager |
| Camera | Joe Pearce | Still Photographer |
| Sound | Bob Jones | Sound Recordist |
| Art | Robert Cartwright | Assistant Art Director |
| Art | Peter James | Set Dresser |
| Art | Jack Towns | Props |
