A Swabian in Rome: The successful producer Montgomery Cassini-Stahl is filming "Jud Süss," a remake of the anti-Semitic work, with which he aims to honor the historical figure Jud Süss Oppenheimer. In the midst of the shooting, the title character collapses dead in front of the Pantheon the morning after a night of love with a young woman. The story is told in flashbacks - from the boy's childhood with the exotic name in the Stuttgart suburb of Degerloch, from the death of his brother, from life in Rome. Ultimately, the outsider has become the great film producer Cassini-Stahl, who is realizing his biggest project to date and must also step into the role of Jud Süss himself. Montgomery is a novel about breaking free from bourgeois constraints, the search for a different truth, and the duality of things. Against the glittering backdrop of Rome's Cinecittà, film producer Montgomery emerges.