In Imperial Russia, Anna, the wife of the officer Karenin, goes to Moscow to visit her brother. On the way, she meets the charming cavalry officer Vronsky to whom she is immediately attracted. But in St. Petersburg’s high society, a relationship like this could destroy a woman’s reputation.
Based on the real life story of legendary cryptanalyst Alan Turing, the film portrays the nail-biting race against time by Turing and his brilliant team of code-breakers at Britain's top-secret Government Code and Cypher School at Bletchley Park, during the darkest days of World War II.