Poirot and his friend Captain Hastings discovered themselves investigating the murder of Count Foscarini, who was found in their apartment. It has been proven that the deceased's personal servant, Mr. Graves, had been dating Miss Lemon and was not very honest about her profession. As for the deceased aristocrat, the police believe he was extorted. The Italian embassy denies any knowledge of the man and denies any official role in the country. Poirot doubted the authenticity of their claims, but also concluded that others were also lying.