Jouin has fallen in love with a young woman called Jeanne Chauvin, who is a qualified lawyer but cannot practice due to her sex. Instead, she is employed by Maitre Weidmann in the Jewish quarter of La Villette. Jeanne agrees to help the young inspector with the Berger case. In the meantime, Meg entertains Madame Lepine, whose drug habit has come to the attention of Puybaraud.
