Forty years ago, Dr. Joel Dimsdale started researching concentration camp survivors. Little did he know where his journey of discovery would lead him. After a visit from a Nuremberg executioner, he switched from studying victims to perpetrators. His latest research is based on an analysis of Rorschach inkblot tests administered at the Nuremberg War Crimes Trial. Using extensive archival data, Dimsdale reviews what the Nuremberg Rorschachs can (and cannot) tell us about the Nazi mass murderers.