For 27 years, U.S. Treasury Special Agent Ryan Corrigan investigated suspicious and criminal financial activity flagged by the IRS. In Special Agent, Corrigan revisits many of his most interesting cases, offering a unique perspective and a fascinating spin on the catchphrase "follow the money." Tasked with several high profile assignments, Corrigan recounts his dealings with mobsters, bookies, hoteliers, and even a serial killer. From racketeering to tax evasion to casino scams to money laundering, this remarkable memoir provides a rare look at a day in the life of a Special Agent.