He was Heinrich Himmler’s personal physician — a man who turned medicine into cruelty. At the Ravensbrück concentration camp, SS doctor Karl Gebhardt conducted brutal experiments on women, breaking bones, infecting wounds, and amputating limbs in the name of “science.” What began as an attempt to defend his medical judgment after Reinhard Heydrich’s death became a campaign of pain and death. Tried at Nuremberg for war crimes and crimes against humanity, Gebhardt was sentenced to hang. His story exposes how doctors became instruments of terror in the Third Reich.