During the worst days of World War II, the British government asks the mathematician Alan Turing to unravel the mysteries of the German Enigma encryption machine, an impossible task to accomplish without the invaluable information that Hans-Thilo Schmidt, a disenchanted but greedy German citizen, had been handing over to the French secret services since 1931.
| Sound | Stéphane Gautier | Sound Mixer |
| Sound | Stéphane Gautier | Sound Editor |
| Sound | Pascal Stive | Original Music Composer |
| Production | Laurence Chanut | Production Manager |
| Production | Céline Rafestin | Producer |
| Directing | Laurent Bergers | Director |
| Production | Benjamin Duroux | Producer |
| Writing | Paul Paillole | Book |
| Production | Thibaut Chatel | Delegated Producer |
| Production | Christine Cauquelin | Producer |
| Production | Sandrine Delegiewicz | Producer |
| Production | Guillaume Gaillot | Delegated Producer |
| Camera | Laurent Bergers | Director of Photography |
| Writing | Alain Frerejean | Writer |
| Production | Justine Moreau | Researcher |
| Editing | Laurent Bergers | Editor |
| Production | Florence Sitoleux | Researcher |
| Art | Pascal Tétrel | Main Title Designer |
| Production | Delia Baldeschi | Producer |
