To dismantle the international crime syndicate 'Gryps' that deals in drugs, elite investigator Kazumi Ichinose ignores orders from above and doesn't hesitate to use rough tactics. Behind her excessive investigations lies a burning desire for revenge against the boss Tabuchi for killing her father. She obtains information about their hideout from a dealer and conducts an undercover investigation, but the information leaks and she is captured by the organization. Restrained and unable to move, Kazumi is administered drugs and struggles violently, but gradually loses her sanity as pleasure consumes her body…
