In the spring of 1959, The Diary of Anne Frank comes to the silver screen to great acclaim, and a young woman named Margie Franklin works in Philadelphia as a secretary at a Jewish law firm. She lives a quiet life, but Margie has a secret: a past and a religion she has denied, and a family and a country she left behind. Margie is really Margot Frank, older sister of Anne, who did not die in Bergen-Belsen as reported. And now, as her sister becomes a global icon, Margie's carefully constructed American life begins to fall apart.