While investigating Mafia money laundering in Phnom Penh, Agent Kasper is approached by the CIA to track down the source of the so-called supernotes --- illegal U.S. banknotes counterfeited so perfectly that they are undetectable, even by sophisticated machines --- that are flooding Southeast Asia. With patience, skill and courage, Kasper uncovers the explosive secret behind them and is badly burned by the truth. Meanwhile, back in Rome, a sharp, scrappy lawyer named Barbara Belli has been hired by Kasper’s family to work for his release.