Alan Turing was a homosexual British mathematician who developed an encryption-breaking machine called the "Enigma" during World War 2. This machine helped decrypt thousands of German messages and saved many British lives. The film The Imitation Game tells the story of Turing and his work on the Enigma machine during the war in a thriller style, celebrating his extraordinary achievement. It begins with a close-up of a sad and stressed Turing being interviewed by two police officers at a station, establishing the serious tone of the film.