There are book characters that you never want to part with. Such characters include Hercule Poirot. Realizing this, the Agatha Christie Heritage Foundation decided to continue the adventures of the great Belgian. And he chose the brilliant detective writer Sophie Hannah as the author of a new novel about Poirot... At the beginning of 1929, Hercule Poirot had just arrived in London. On the Continent he had already gained fame as a great detective, but in foggy Albion no one knew the little Belgian yet. However, true talent is blessed by fate, and the opportunity to prove oneself will always present itself. This is what happened now. Edward Catchpool, a detective from Scotland Yard - and, as fate would have it, Poirot's boarding housemate - spoke about the extremely complicated case. In a fashionable London hotel - in three different rooms, but at the same time - three people die. What's even stranger is that a gold cufflink with the same monogram is found in each of their mouths. A triple murder is certain. But how and why?.. Needless to say, the great Hercule Poirot simply could not ignore such a riddle...