Rei, a beautiful associate professor of French literature deeply enamored with French literary works, dedicates her life to studying original texts. In an attempt to grasp the essence of the Marquis de Sade's writings, she secretly joins an SM club for a firsthand experience. However, her actions draw her into a whirlpool of abnormal desires stirred by the ghost of the Marquis de Sade himself—a man whose life was spent imprisoned in jails and asylums. Witness the transformation of this elegant academic as she awakens to the terrifying pleasure of masochism, tormented by the primal urges buried within. A profound exploration of how Sade's philosophy blurs the boundaries between literature and reality, exposing the depths of human desire.