Over 11 million were murdered in the Nazi death camps during WW2.For no logical reason at all. I had to stop this video about every 5 minutes. That was the only way I could get through it. Alfred Hitchcock made this partial documentary shortly after the end of the war. The suffering and death in this film is beyond imaging. All of those poor people who suffered and died horrible deaths. The film was deemed too graphic for viewing and never finished.