The daughter of a notorious smuggler is raised as a boy by her foster mother.

As part of the fascination in post World War II France with American culture, a young French couple here travel to the US to see for themselves the prosperity they have heard about.

The film is a 125-minute, black-and-white biography of French priest and diplomat Charles Maurice de Talleyrand-Périgord (1754–1838), who served for 50 years under five different French regimes: the Absolute Monarchy, the Revolution, the Consulate, the Empire, and the Constitutional Monarchy. Its title comes from one of the main historical nicknames for Talleyrand, that he shares with demon king Asmodeus and English poet Lord Byron.

Elisabeth D'Anthar cheats on her husband François with Simon De Chabre. François, who suspects something, surprises his rival and wounds him. Elisabeth 's sister, to save the situation, claims that Simon is actually in love with her and came to see her. They have to get engaged and Simon breaks up with his lover. But Elisabeth is not prepared to accept it, and she becomes the head of a gang of "drivers" in order to kidnap her husband. Famous Vidocq intervenes.

Together with her partner-in-crime Claude, Clarence sets her sites on famed explorer Maxime. It seems that Luguet has stumbled upon the fabled "elephant's graveyard" in the jungles of Africa, and Miranda intends to get her well-manicured mitts on all that valuable ivory.

The knight Henri de Lagardère wants to avenge the death of his friend, the duke Philippe de Nevers assassinated by the prince de Gonzague, a few years before.

The formidable K.O. Bouillon killed trainer Victor's colt during a boxing fight. Strongly affected, Victor returns to the south to find his wife and adopted daughter. He discovers in the person of Bernard a seed of champion which he ensures the training in secret...