Madame de La Pommeraye, a young widow, succumbs to the charms of the Marquis of Arcis, a notorious libertine. After several years of pure happiness, Madame de La Pommeraye reveals with astonishment that the Marquis is bored with this union and that he would like to be separated from her. Loved in love, wounded, broken heart, she decides to revenge the Arcis marquis, benefiting in this sense from the complicity of Miss Joncquières and her mother.