The Mystery of the Blue Train A tragedy occurred on the luxurious Blue Train train from London to the French Riviera. The daughter of the famous American millionaire Ruth Kettering was strangled in her own compartment, and all her jewelry, including an amazing ruby, disappeared. On the same train, the great detective Hercule Poirot was going on vacation at sea, who, of course, could not stay away from the investigation... A tragedy in three acts. A party at the villa of the famous actor Sir Charles Cartwright, who recently completed his theatrical career, gathers thirteen guests. An unlucky number becomes fatal for one of them, Pastor Babbington, who suddenly dies after taking a sip from his glass of cocktail. Is it an accident or a deliberate murder? The great detective Hercule Poirot, who was among the guests, takes up the investigation. However, a chemical examination showed that the glass of the deceased did not contain any poisons. And, to make Poirot even more puzzling, there is absolutely no motive for the murder. However, the detective is convinced: there can be no talk of any accident...