Hercule Poirot is hired by Lord Pearson, who happens to the head of the bank where Poirot keeps his accounts, to find Mr. Wu Ling who was to have attended a meeting at the bank hat morning, but has disappeared. The missing man was to sell the bank a deed to a silver mine. When the man is found dead, finds himself searching for a killer. All of the evidence seems to point to an American, Charles Lester, but Poirot finds that to be just a little too convenient. At home, Poirot and Captain Hastings find themselves involved in a vicious game of Monopoly!