The Nazi Regime under Adolf Hitler imposed some of the most insane forms of eugenics the world has ever seen. Between 1939 and 1945, at least 70 medical research projects, involving cruel and often lethal experimentation on human subjects, were conducted behind the walls of Nazi concentration camps. These supposed research projects were carried out by established institutions within the Third Reich and fell into three main areas; research aimed at improving the survival and rescue of German troops, testing of medical procedures and pharmaceuticals, and experiments that sought to confirm Nazi racial ideology. More than seven thousand victims of these medical experiments have been documented, but the official number remains unknown.

Survivors of the Bergen-Belsen concentration camp eloquently and movingly tell of their experiences of deportation, family destruction, and their own survival, together with the history of its place in the Nazi death camp system and its liberation by the British army in April 1945.