The film "120 Days of Sodom", which is ranked first among the top ten banned films in the world, may be the most perverted movie in human history, and also a film that deeply analyzes the evil of human nature. The famous Italian director Pasolini tried to dig out the ugliness in people's hearts in the film. The realistic style of the movie makes many scenes unbearable. Arbitrary abuse, insults, molestation, torture, rape, sodomy, flogging, drinking urine, eating feces, adultery, homosexuality, and all kinds of insane extreme punishments: burning boys' penises and girls' breasts with candles, branding the chest with irons, cutting tongues, digging eyes, scalping, even strangling and shooting to death, etc. It can be imagined that when the above scenes are presented nakedly in front of you, what kind of stimulation and physiological reactions they will bring to you.