Dr. Aribert Heim worked at the Mauthausen concentration camp for only a few months in 1941 but left a devastating mark. According to the testimony of survivors, Heim euthanized patients with injections of gasoline into their hearts and performed surgeries on otherwise healthy people. In THE ETERNAL NAZI, Nicholas Kulish and Souad Mekhennet reveal for the first time how Heim evaded capture while inspiring a manhunt that outlived him by many years.