Inspector Lognon of the 9th police district witnesses a shooting in the streets of Paris: a car speeds along, a man jumps out and is gunned down. When he returns to the scene with his alarmed colleagues, the injured man has already been dragged into another car and taken away. The investigation leads to the trail of the American gangster Larner, who has recently left the United States in the company of two brutal accomplices named Cicero and Cinaglia. Maigret, who is assigned the case, knows that these criminals will stop at nothing ... Based on the 40th novel in the Maigret series, Maigret, Lognon et les Gangsters (1951). Published in German translation as Maigret and the Gangsters and later in a new translation as Maigret, Lognon and the Gangsters.