In 1926, a financially beleaguered Winston Churchill turns to Mycroft Holmes with an extraordinary request: to engineer a unique and secret tax exemption that would allow the Chancellor of the Exchequer to avoid paying his own substantial tax bill. Mycroft deploys his unparalleled understanding of bureaucracy, ambition, and human weakness to manipulate the Inland Revenue’s top official. But when famed author P.G. Wodehouse seeks similar relief years later, Mycroft faces a dilemma between personal favour and public principle—a sharp exploration of power, privilege, and the art of the possible in the shadow of the state.