Incest is a chilling tale of sexual experimentation and philosophical exploration carried to its most logicaland devastatingextreme. Marquis de Sade’s semi-autobiographical protagonist, Monsieur de Franval, is rich, handsome, intelligent, and thoroughly immoral. When he marries a pious woman and fathers a daughter, he is determined to educate his progeny to be free.” The ultimate proof of his daughter’s unfettered liberty? That she become his secret lover. But when the beautiful and accomplished daughter spurns an eligible young bachelor, instead declaring her intention to remain with her father, her naïve and doting mother’s suspicions are at last aroused. Confused and distressed by her daughter’s behavior, Madame de Franval confronts her husbandwith tragic results. A challenging and breathtaking masterpiece, Incest is a sober portrait of catastrophe in the midst of excess.