A stranger enters into and forever alters the life of a couple. He claims to be pursued by certain authorities who intend to prevent him from disclosing a secret that only he holds, whence the title. Is he lying, or insane - or is he telling the truth? Who, if anyone, is after him? And what *is* - the secret?

• DirectorRobert Enrico
• Release9 October 1974
• Genre
  Drama / Thriller
• Duration1h 42m
• Budget?
• Revenue?
• Rate
  

  6.5
  34 reviews
• Productions

  Président Films, Valoria Films