I totally agree with you. I am a WW2 history buff and I have studied the subject of Japanese human experiment facility Unit 731 in depth. I found out a movie had been made about the facility (Philosophy of a Knife) and watched it. While it featured actors and actresses being subjected to the barbaric experiments of these psychopathic scientists, it was still very disturbing. I do not know why someone would want to see the real thing.
I have only heard vague referneces to the human experimentation that was done during that time. I also heard that the nazis enaged in this as well. There is a very dark side to human beings it seems.