The murder of the chief official of Kobe city's Customs triggers an investigation of a prostitution ring called the 'Yellow Line' that sells Japanese women. A hired assassin is betrayed by his organization, and kidnaps a woman who happens to be the girlfriend of a newspaper reporter.
A young obstetrician-gynecologist, who was betrayed by his beloved, out of hatred for women, turns into a vengeful demon and rapes women one by one.
