Based on Tatiana de Rosnay's best-selling novel, Sarah's Key tells the story of an American journalist on the brink of making big life decisions regarding her marriage and her unborn child. What starts off as a research article about the Vel'd'Hiv Roundup in 1942 in France ends up as a journey towards self-discovery as she stumbles upon a terrible secret and discovers the heartbreaking story of a Jewish family forced out of their home, a home that is now their own.