When Roger Havering requests the services of Hercule Poirot, who is ill in bed with the flu, to investigate the murder of his uncle at his hunting lodge in Derbyshire, the great Belgian detective must turn to Captain Hastings to be his “eyes and ears” to solve the puzzling case…

Captain Hastings meets a couple at a party who have just rented a flat in London’s most fashionable district for an implausibly cheap price. Poirot is intrigued and sets out to investigate.