International bestselling author Roberto Saviano explores the inner workings of the world of drugs and dirty money - its rules and armies - and the true depth of its reach. From Mexican cartels to Milanese financiers, Guatemalan mercenaries to Ukrainian warlords, Calabrian traffickers to the traders in Wall Street and London who wash the money clean, this is an unforgettable story that goes around the globe and through every level of society to show the extent to which the drug trade affects us all.