The Story of O

A young schoolgirl, Yuen Fong becomes caught in a tragic stranglehold of triad activity after she testifies in court over a triad beating. When this news reaches the triad leader Brother Smart, Yuen Fong must pay him protection money for what she has done as events begin to escalate.

Three lazybones friends manufacture a firebomb and place it in a cinema. Pearl, a sadistic young girl, has observed the scene, follows the bombers and starts to manipulate them. The four criminals plan more and more daring acts.

In 1935, Japan's Unit 731 conducts inhumane experiments. A doctor tries to free prisoners, including his fiancée, from the camp while witnessing atrocities.

A corrupt magistrate subjects a innocent young bride to inconceivable physical punishments after convicting her of killing her husband.

After one thousand years, three vixens transform into humans. They seduce a poor young scholar who soon finds himself in a horrifying situation.