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...
| Actor | Role |
|---|---|
 Danielle DarrieuxMadame de Montespan | Madame de Montespan |
 Viviane RomanceCatherine Deshayes, dite La Voisin | Catherine Deshayes, dite La Voisin |
 Paul Meurissel'abbé Guibourg | l'abbé Guibourg |
 Anne VernonHermine des Œillets | Hermine des Œillets |
 Maurice TeynacNicolas de La Reynie | Nicolas de La Reynie |
 Pierre Mondyle capitaine François Desgrez | le capitaine François Desgrez |
 Roldano LupiLesage | Lesage |
| CChristine CarrèreAngélique de Fontanges | Angélique de Fontanges |
 Albert Rémyle bourreau Guillaume | le bourreau Guillaume |
 Renaud MaryHenri de Montespan | Henri de Montespan |