Imitation Games

The Imitation Game is a 2014 American historical drama film directed by Morten Tyldum and written by Graham Moore, based on the 1983 biography Alan Turing: The Enigma by Andrew Hodges. In 1951, two policemen, Nock and Staehl, investigate the mathematician Alan Turing after an apparent break-in at his home. During his interrogation by Nock, Turing tells of his time working at Bletchley Park during the Second World War.
In 1928, the young Turing is unhappy and bullied at boarding school. He develops a friendship with Christopher Morcom, who sparks his interest in cryptography. Turing develops romantic feelings for him, but Christopher soon dies from tuberculosis.
When Britain declares war on Germany in 1939, Turing travels to Bletchley Park. Under the direction of Commander Alastair Denniston, he joins the cryptography team of Hugh Alexander, John Cairncross, Peter Hilton, Keith Furman, and Charles Richards. The team are trying to analyze the Enigma machine, which the Nazis use to send coded messages.
Turing is difficult to work with, and considers his colleagues inferior; he works alone to design a machine to decipher Enigma messages. After Denniston refuses to fund the construction of the machine, Turing writes to Prime Minister Winston Churchill, who puts Turing in charge of the team and funds the machine. Turing fires Furman and Richards and places a difficult crossword in newspapers to find replacements. Joan Clarke, a Cambridge graduate, passes Turing's test but her parents will not allow her to work with the male cryptographers. Turing arranges for her to live and work with the female clerks who intercept the messages and shares his plans with her. With Clarke's help, Turing warms to the other colleagues, who begin to respect him.