Jean-Claude Riga and Léon Michaux follow their trajectory together with their guide Olga, past countless newspaper articles, pictures and writings. The trail leads to the KGB archives, where the consultation of Simenon’s file revives the spirits of the old oppression. Between documentary and fiction, Simenon et “les gens d’en face” supplies us with an image of society on the edge of decay, through the eyes of Simenon and the filmmakers.