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.
| Directing | Laurent Bergers | Director |
| Sound | Pascal Stive | Original Music Composer |
| Sound | Stéphane Gautier | Sound Editor |
| Sound | Stéphane Gautier | Sound Mixer |
| Production | Laurence Chanut | Production Manager |
| Production | Céline Rafestin | Producer |
| Production | Benjamin Duroux | Producer |
| Writing | Alain Frerejean | Writer |
| Writing | Paul Paillole | Book |
| Editing | Laurent Bergers | Editor |
| Art | Pascal Tétrel | Main Title Designer |
| Production | Justine Moreau | Researcher |
| Production | Florence Sitoleux | Researcher |
| Production | Thibaut Chatel | Delegated Producer |
| Production | Guillaume Gaillot | Delegated Producer |
| Production | Christine Cauquelin | Producer |
| Production | Delia Baldeschi | Producer |
| Production | Sandrine Delegiewicz | Producer |
| Camera | Laurent Bergers | Director of Photography |
