After two British Secret Intelligence Service agents are murdered at the hands of a cryptic neo-Nazi group known as Phoenix, the suave agent Quiller is sent to Berlin to investigate.
| Directing | Michael Anderson | Director |
| Writing | Harold Pinter | Screenplay |
| Directing | Joan Kirk | Continuity |
| Camera | John Winbolt | Camera Operator |
| Costume & Make-Up | Stella Rivers | Hair Designer |
| Directing | Clive Reed | Assistant Director |
| Crew | Les Bowie | Special Effects |
| Production | Ivan Foxwell | Producer |
| Editing | Frederick Wilson | Editor |
| Production | Sydney Streeter | Production Supervisor |
| Sound | C. C. Stevens | Sound Recordist |
| Sound | Archie Ludski | Sound Editor |
| Costume & Make-Up | W.T. Partleton | Makeup Artist |
| Sound | John Barry | Original Music Composer |
| Sound | John Aldred | Sound Recordist |
| Camera | Erwin Hillier | Director of Photography |
| Art | Maurice Carter | Art Direction |
| Production | Bernard Williams | Unit Manager |
| Crew | Arthur Beavis | Special Effects |
| Art | Arthur Taksen | Set Dresser |
| Camera | John Shinerock | Focus Puller |
| Sound | Charles Van der Goor | Sound |
| Writing | Trevor Dudley-Smith | Novel |
| Sound | John Barry | Songs |
| Writing | Mack David | Lyricist |
