P

oirot and Captain Hastings travel to Cornwall at the request of Mrs. Pengelly but arrive to find that the woman is dead. She had told Poirot the previous day that she feared her dentist husband, Edward Pengelly, had been having an affair with his pretty receptionist and that further, he was trying to poison her. Apart from her husband, she has a niece and her fiancé, but no other relatives in the village. When Inspector Japp arrests the husband for murder, the Belgian detective is convinced that the wrong person is in the dock.

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