Madame de Montespan, the Maîtresse-en-titre of Louis XIV, has been in disgrace since the King set eyes on a younger beauty, Marie-Angélique Scorailles. Having had enough of the situation, the rejected mistress decides to visit La Voisin, a woman known as a fortune teller, a doctor, a midwife and who is also said to arrange black masses and sell poisons. Some time later Marie-Angélique, now Duchess of Fontanges, dies mysteriously aged only twenty...

Paris 1847. A British Lord, Lord Henry Seymour, is famous for his eccentricities. The aristocracy disapproves of his frequenting of the dregs of society and his support of destitute people. On the other hand, his good looks attract beautiful women like Virginie, the star of the Prado, and Anna Risomonti, a fair Italian opera singer. As for Henry, he has designs on young but willful Chantereine, a young singer-actress. But Don Juan soon turns into Romeo and true love unites the couple. Unfortunately, Henry's life is thrown awry by fellow aristocrats, among whom Harel, his sworn enemy, who reveals the secret of his birth.

American FBI agent Lemmy Caution arrives in France to track down a dangerous spy.

Catherine Hubscher, who washes the shirts of young Napoleon and other soldiers fighting the Revolution, falls in love with Sergeant Lefebvre. Circumstances bring Lefebvre a noble title and even more -- Napoleon decides to make him the local ruler over a large territorial fiefdom. But trouble brews when Madame Sans-Gene, now elevated to the nobility along with her man -- cannot keep her frank observations under control.

Arsène Lupin is extremely popular among the population, because he allows the needy to share in his acquired wealth. Before entering the service of the German Emperor Wilhelm II, he removes his vault in Alsace, steals two paintings of old masters, steals valuable gems and calls out to the police prefect to avoid his arrest. But this time he risks being seriously recognized. Lupin must once again use his fine intellect to deftly escape the situation.