Set inside a stark, industrial modern facility blending theatrical aesthetics with avant-garde fashion, 15-year-old Eugénie (Bel Friósi) is brought into an isolated boudoir to undergo an intense philosophical and sexual education. Guided by the libertine philosopher Dolmancé (Henrique Mello) and the seasoned Madame de Saint-Ange (Stephane Sousa), Eugénie is instructed in atheism, anti-clericalism, and unrestricted hedonism. Through a series of orchestrated erotic encounters and philosophical discourses—joined by Augustin (Phedra D. Córdoba) and Eugénie's brother, Chevalier de Mirvel (Hugo Godinho)—the mentors systematically deconstruct societal, religious, and moral taboos. The indoctrination culminates when Eugénie's pious, conservative mother, Madame de Mistival (Suzana Muniz), arrives to rescue her daughter, only to be subjected to a cruel, ritualistic ordeal engineered by Eugénie and her libertine tutors.