Seventeen-year-old Pierre has little experience of his aloof mother until the tragic death of his father, an event that finds him seduced by the dark, illicit world of his remaining parent. Helene has little in the way of a mothering extinct, instead she has devoted her life to exploring the darkest boundaries of sexual indiscretion, and she sees in her son a pupil to be inducted into the world of the 'free'. 'Ma Mere' is a disturbing libertarian tale of obsession and immorality, powerful, unnerving, but undeniably sensual, with a hypnotic performance from Huppert. Free spirits or perverts?... make up your own mind.