The story of the WWII project to crack the code behind the Enigma machine, used by the Germans to encrypt messages sent to their submarines.
Rani, a 24-year-old homely girl, decides to go on her honeymoon alone when her fiancé calls off the wedding. Traveling around Europe, she finds joy, makes friends, and gains new-found independence.
An ambitious American fulfilling her dream of studying at Oxford falls for a charming Brit hiding a secret that may upend her perfectly planned life.