It is 1824, and trust in the virtual money of the day – new paper financial instruments – is so fragile that anyone forging them is sent to the scaffold. So why would one of London's most respected bankers start forging his clients' signatures? Sent to arrest Henry Fauntleroy, Constable Samuel Plank is determined to find out why the banker has risked his reputation, his banking house and his neck – and why he is so determined to plead guilty. As the case makes its way through the Regency justice system, exercising the finest legal minds of their generation and dividing London society into the banker's supporters and detractors, Plank races against time to find the answers that can save Fauntleroy's life.