Kristin Scott-Thomas plays a journalist by the name of Julia Jarmond. During the writing of an article about the roundup she becomes consumed with the story of a young girl caught in the French police sweep. Sarah Starzynski (Mélusine Mayance) is arrested and was supposed to have been shipped off along with her family to Auschwitz and thousands of other French Jews. But something’s amiss. The girl and her brother do not appear on the concentration camp’s lists. Jarmond decides to investigate their fate.