38-year-old Erika Kohut, a piano teacher at the Vienna Conservatory, still lives with her domineering mother. Erika has a weakness for buying clothing that she will never actually wear, secretly visits Turkish peep shows and watches sadomasochistic films. When a handsome, self-absorbed 17-year-old student attempts to seduce Erika, she resists, but the relationship between teacher and pupil spirals rapidly out of control, and Erika becomes consumed...