When the government develops a bio-engineered cyborg, named Dragon, as a secret weapon, a failure in gene manipulation turns the creature into a sex-crazed monster! The government assigns three very sexy agents to find the creature, and execute everyone involved. Will they be able to solve the case before even more women are abducted to fill the creature's sexual appetite? Or will they become Dragon's next conquests?

When detective Takayasu Higashino rescues the lovely young Ayane from being raped, he didn't know he was getting into a whole lot of trouble. For one thing, Takayasu looks like Shingo - Ayane's dead stepbrother. Ayane and Shingo are supposed to inherit the family legacy, but it seems some relatives aren't too happy with this arrangement. Inevitably, Ayane asks for Takayasu's help with her family troubles. Takayasu must get to the bottom of things fast, before Ayane shares her stepbrother's tragic fate.

Sanshiro is only a servent's child, but he loves the daughter of his Master, Momoyo. All he can do is watch Momoyo from a hole in the ceiling and count down the days until her fiance, Yoichiro, returns from England to take her away forever. When the fiance does return, however, he brings not only separation for the poor Sanshiro, but also a curse of lust and sadism down upon the entire household! Sanshiro can only watch as a plague of lasciviousness infects Momoyo's sister, the maid, and all those who come in contact with Yoichiro. But is can this lust be natural, or does it hold the taint of evil?