Lady J (2019)

Madame de La Pommeraye, a reclusive young widow, assigns to the court of the Marquis des Arcis, licentious notorious. After a few years of a happiness without flaw, she discovers that the Marquis is tired of their union. Madly in love and terribly injured, she decides to take revenge on him with the complicity of Mademoiselle de Joncquières and her mother.