Risa is an investigator for a government agency but an unofficial organization. She discovers that pleasure drugs are behind the sudden increase in the number of suspicious deaths of young women. She infiltrates as a nurse into a hospital suspected of being a manufacturing factory. However, she is tricked by the director and given a pleasure drug. She is subjected to despicable pleasure torture, including electric currents, vibrators, and triple electric massagers. Risa is addicted to drugs and violated both physically and mentally...