Mrs. Gallienne, a rather temperamental upper middle-class lady, has three children, two of whom she considers as her sons and another she calls Guillaume. Logically indeed, the latter teenage creature does not picture himself as a boy, rather as a girl or at best as a homosexual. But how can a mother act in such an objectionable way? And why? Through a series of painful chain of experiences, Guillaume will discover little by little who he is actually and will manage to break free from her pernicious influence. Written by Guy Bellinger

An elderly curmudgeon lets out a room in his large apartment rent-free to a young student - on condition that she does everything in her power to ruin his son's marriage.