ercule Poirot accompanies his friend Captain Hastings on a weekend shooting party at the home of Harrington Pace, but he isn't having a very good time. He comes down with the flu and takes to his bed but when Pace is shot dead in his study, he rises to the occasion to assist Inspector Japp in solving the case. Pace was not very likable and treated those around him badly. He refused to acknowledge his illegitimate half brother, who worked on the family estate as the gamekeeper, refusing him even a small loan that would allow him to marry. His two nephews did not benefit from the family wealth having been told they may inherit something on this death. The solution to the case lies in correctly identifying the mysterious housekeeper, Mrs. Middleton, whom Pace had hired for a month and determining her exact role in this mysterious affair.

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