Visiting in England, an American surgeon Doctor John Marlowe is decoyed to a middle European country, and discovers the operation he is to perform is on the Vosnian dictator. When the latter dies, he is replaced by a look-alike, but Marlowe then becomes the object of a shoot-to-kill, vicious pursuit by the secret police of Vosnia since it is vital to Vosnia that the dictator's death does not become known. Fleeing, he seeks help from an actress, Lisa Robinson, and the two are harried across the countryside.
| Art | Wilfred Shingleton | Art Direction |
| Writing | Roy Huggins | Novel |
| Editing | Thelma Myers | Editor |
| Production | Leslie Gilliat | Production Manager |
| Camera | Robert Krasker | Director of Photography |
| Production | Frank Launder | Producer |
| Costume & Make-Up | Michael Morris | Makeup Artist |
| Sound | Lee Doig | Sound Editor |
| Directing | Paddy Arnold | Continuity |
| Directing | Guy Hamilton | Assistant Director |
| Directing | Sidney Gilliat | Director |
| Production | Sidney Gilliat | Producer |
| Camera | Edward Scaife | Camera Operator |
| Art | John Hawkesworth | Assistant Art Director |
| Costume & Make-Up | Beatrice Dawson | Costume Design |
| Costume & Make-Up | Ivy Baker | Costume Design |
| Sound | Alan Allen | Sound Recordist |
| Writing | Sidney Gilliat | Screenplay |
| Sound | William Alwyn | Original Music Composer |
| Costume & Make-Up | Waleen Whitworth | Hairdresser |
| Camera | Gerry Fisher | Assistant Camera |
| Art | Kenneth McCallum Tait | Assistant Art Director |
| Production | Cyril Coke | Producer's Assistant |
| Sound | Muir Mathieson | Conductor |
| Editing | Derek Armstrong | Assistant Editor |
