November 2009. An emaciated young lawyer, Sergei Magnitsky, is led to a freezing isolation cell in a Moscow prison, handcuffed to a bed rail, and beaten to death by eight police officers. His crime? To testify against the Russian Interior Ministry officials who were involved in a conspiracy to steal $230 million of taxes paid to the state by one of the world's most successful hedge funds. Magnitsky's brutal killing has remained uninvestigated and...