Hercule Poirot's Christmas

We join our faviourite  sleuth Hercule as he investigates a sort of closed door mystery of a death at a Christmas house party - but is everyone just what they seem?
The cast of suspects contains Harry Lee – the Prodigal son returned always a bad seed, Pilar Estravados – granddaughter of the victim a fiery Spanish Beauty.

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 Stephen Farr son of the victims late business partner – but was everything on the up and up there? Lydia Lee – daughter in law, desperate for her husband Alfred to break free of his fathers control – was she desperate enough for murder? Hilda Lee – daughter in law and wife of David Lee – David was very attached to his mother and blames his father for her early death – was that enough to push one of them to the edge? Last but not least Magdalene Lee – Spends money at a rapid speed – would she kill her father in law so get access to her husbands inheritance?

Poirot staying nearby is called in to advise on this mysterious case - where all seem to have motive - but all seem to have alibi's for the time Simeon Lee is killed - which is easily fixed by the noise and horrific scream! - so who did it?