This film tells the story of Pierre, a successful, young writer who lives with his mother and is engaged to a lovely woman. Despite his perfect life, a strange, dark-haired woman haunts him in his dreams. When the woman appears in real life claiming to be his long-lost sister, Isabelle, Pierre breaks up with Lucie, deciding to head for Paris with the intent on knowing the dark side of human nature. This movie has no redeeming qualities in it whatsoever.