Julia Jarmond, an American journalist married to a Frenchman, is commissioned to write an article about the notorious Vel d'Hiv round up, which took place in Paris, in 1942. She stumbles upon a family secret which will link her forever to the destiny of a young Jewish girl, Sarah. Julia learns that the apartment she and her husband Bertrand plan to move into was acquired by Bertrand's family when its Jewish occupants were dispossessed and deported 60 years before. She resolves to find out what happened to the former occupants: Wladyslaw and Rywka Starzynski, parents of 10-year-old Sarah and four-year-old Michel. The more Julia discovers - especially about Sarah, the only member of the Starzynski family to survive - the more she uncovers about Bertrand's family, about France and, finally, herself.