Patrick Modiano has compiled three books under the title "Paris Trilogy": "Evening Society," "Suburbs," and "Family Tree." How does one become a traitor, and how can it be prevented? These questions are posed by a young Frenchman who, working for the Gestapo, joins a Resistance group. In a narrative that is both gentle and unyielding, Modiano approaches a past he himself did not experience. With his unmistakable musicality, he brings words to life and transforms them into a fantastically enchanting evening society. In the suburbs, outside of Paris, Serge Alexandre searches for his father. Once again, we find ourselves in the time of occupation. Who is this father? What does he do as a Jew among all the shady figures? Why does he no longer recognize his son? Until the end, the narrator follows the traces of his ghostly father.