Orlando Edison is a stockbroker using London's infatuation with foreign mining ventures to make a fortune. He has curried favor with the nation's most respected aristocrats, even inviting three of the most influential investors in England - known as the Merry Gentlemen - to be part of his latest enterprise. Then, a few days before Christmas, he's found murdered. Inspector Witherspoon and his household are all looking forward to the festive season. But they all know their duty, and led by the intrepid Mrs. Jeffries, they plan to see justice served for the holidays.