January 2003. Together with the usual holiday cards, an anonymous postcard is delivered to the Berest family home. On the front, a photo of the Opéra Garnier in Paris. On the back, the names of Anne Berest’s maternal great-grandparents, Ephraïm and Emma, and their children, Noémie and Jacques --- all killed at Auschwitz. Years after the postcard is delivered, the heroine of this novel is moved to discover who sent it and why. What emerges is a moving saga of a family devastated by the travails of the 20th century and partly restored through the power of storytelling.