The house at 38 Londres Street in Santiago, Chile, is home to the legacies of two men whose personal stories span continents, nationalities and decades of atrocity: Augusto Pinochet, President of Chile, and Walther Rauff, a Nazi SS officer responsible for the use of gas vans. In 38 Londres Street, Philippe Sands blends personal memoir, historical detective work and gripping courtroom drama to probe a secret double story of mass murder, one that reveals a shocking link between the horrors of the 1940s with those of our own times. In so doing, he reveals an untold and astonishing tale of the legacy of unchecked criminality and the road to impunity.