An American veteran returns to England after WWII to learn that his London lover has become involved with a dangerous spy ring and their search for a limping sniper.
| Writing | Anthony Verney | Story |
| Writing | Ian Stuart Black | Screenplay |
| Writing | Reginald Long | Screenplay |
| Directing | Cy Endfield | Director |
| Directing | Gladys Reeve | Continuity |
| Sound | Arthur Wilkinson | Original Music Composer |
| Editing | Stanley Willis | Editor |
| Production | Donald Ginsberg | Producer |
| Camera | Jonah Jones | Director of Photography |
| Art | Fred Mannin | Draughtsman |
| Art | Cedric Dawe | Art Direction |
| Costume & Make-Up | Peter Evans | Makeup Artist |
| Costume & Make-Up | Pearl Tipaldi | Hairdresser |
| Production | Elsa Hatchett | Production Manager |
| Directing | Pat Kelly | Assistant Director |
| Directing | Douglas Hickox | Second Assistant Director |
| Directing | John Pitcher | Third Assistant Director |
| Art | Jack Stevens | Assistant Art Director |
| Sound | Dave Drinkwater | Boom Operator |
| Sound | Paul Lecker | Boom Operator |
| Sound | Kevin Sutton | Boom Operator |
| Camera | Ron Robson | Camera Operator |
| Camera | Alec Mills | Clapper Loader |
| Camera | Dennis Reed | Still Photographer |
| Camera | Michael Scott | Still Photographer |
| Camera | Manny Yospa | Focus Puller |
| Costume & Make-Up | Jenny Benson | Costume Design |
| Sound | Eric Robinson | Music Director |
