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.
In 1927 the young Turing is unhappy and bullied at boarding school. He develops a friendship with Christopher Morcom, who sparks his interest in cryptography, and Turing develops romantic feelings for him. Before Turing can confess his love, Christopher dies unexpectedly from tuberculosis.
When Britain declares war on Germany in 1939, Turing travels to Bletchley Park, where, 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 decrypt the Enigma machine, which the Nazis use to send coded messages.
Directed by Morten Tyldum | Produced by Nora Grossman, Ido Ostrowsky, Teddy, Schwarzman | Written by Graham Moore | Based on Alan Turing: The Enigma by Andrew Hodges | Starring Benedict Cumberbatch, Keira Knightley, Matthew Goode, Rory Kinnear,Charles Dance, Mark Strong