During World War II, the Allies were unable to decipher the German secret system "Enigma". The government convened a group of civilian mathematicians and logicians to carry out secret deciphering work. Turing (Benedict Cumberbatch) was one of them. At the beginning of the plan, Turing was rejected by the team members and leaders headed by Hugh (Matthew Goode). Fortunately, the Minister of MI6 Menzies (Mark Strong) helped him to set up a project to study the machine to decipher the code, and Turing became the person in charge and recruited a new member Joan (Keira Knightley) to start the difficult work. Joan soon became fascinated by Turing. With her help, all the team members united unprecedentedly and successfully cracked the German code two years later. Turing was once engaged to Joan, but in fact he concealed a secret, because of this secret he also suffered inhuman treatment... This film is adapted from "Alan Turing Biography" compiled by Andrew Hodges. After its release, it won the 87th Academy Award for Best Adapted Screenplay.