Female investigators keep disappearing in a series of mysterious incidents. To uncover the truth, one agent is forced to conduct dangerous solo infiltrations into multiple buildings. Driven by deep concern for her missing comrades, she's determined to save them, even at the cost of her own body. However, the buildings she infiltrates are rigged with deadly traps. Any resistance proves futile—her dignity as a woman is stripped away, and intense physical pleasure is forcibly implanted into her body. Gradually, her mental balance collapses, until she begins craving men, ultimately transforming into a depraved female slave■ craving sexual submission.