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.

When the Welsh poet Dylan Thomas and his flirtatious wife Caitlin sweep into war-torn London, the last thing they expect is to bump into Dylan's childhood sweetheart Vera. Despite her joy at seeing Dylan after so many years, Vera is swept off her feet by a dashing officer, William Killick, and finds herself torn between the open adoration of her new found beau and the wily charms of the exotic Welshman.

French silkworm trader Hervé is married to the beautiful Hélène. When an outbreak of disease ravages European silkworms, Hervé must travel to Japan to retrieve healthy eggs. After a long journey, Hervé finally arrives at a village where he can buy them. He becomes infatuated with a young concubine and goes to great lengths to see her again. But, when war breaks out in Japan, the concubine flees, forcing Hervé to return home to his wife.

As a 13-year-old, fledgling writer Briony Tallis irrevocably changes the course of several lives when she accuses her older sister's lover of a crime he did not commit.