Reviled Nazi war criminal Dr Aribert Heim was infamous for carrying out grotesque, sadistic medical experiments on Jewish prisoners at the Muthausen concentration camp such as the removal of organs without anaesthetic, decapitating one murdered prisoner & boiling off the flesh to use the skull as an exhibit. Alerted of his imminent arrest in 1962, Heim disappeared, with alleged sightings over the following years in Egypt, Uruguay, Chile & Spain. Here, for the first time, is the dramatic true story of how a clandestine organisation operating outside of international law tracked down the ' Butcher of Mauthausen' & assassinated him.