Calle Londres 38 is the address in Santiago of one of the notorious detention centres where the government of the Chilean dictator General Augusto Pinochet tortured and murdered its opponents after the military coup of 1973. This book is mainly about the international row that broke out between 1998 and 2000 when Pinochet, by then retired, visited London for a medical operation and a Spanish judge applied to have him extradited for trial in Spain.