In the novel, there was no way for Agatha Christie to specify which twelve hands delivered the fatal blows to Ratchett, as Poirot was not present to see exactly how it was done. Poirot's best guess is that Helena (Countess Andrenyi) likely took a sleeping draught, and that her husband "filled in" for her. Once it became clear that the crime would have to be shown in explicit terms on-screen, screenwriter Paul Dehn cleverly assured a twist for those who might figure out the connection between the Armstrong family and Ratchett's murder: Dehn has the Andrenyis (Michael York and Jacqueline Bisset) join hands for one plunge of the knife, leaving the twelfth stab wound to Conductor Pierre Michel (Jean Pierre Cassel), the last character revealed to be connected to the Armstrong family, moments before Poirot begins his summation of the crime. Lending further contrast, the BBC's version of the story for Poirot (1989) (season twelve, episode three) has the family protect Helena by insisting that she not take part in the crime. In that rendition, the twelfth stab wound is administered by Dr. Constantine, who is revealed to have been Sonia Armstrong's obstetrician. While unfaithful to the original plot, this twist adds an undeniably intriguing element to the tale, as Dr. Constantine is part of the investigation team and therefore in a position to sway Poirot toward the idea of a mafioso having killed Ratchett, and away from the truth.
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05-03-2025 alle ore 08:25