Corey is driving home from work, frustrated...like always. He's always been fascinated with the thoughts of doubles fighting...two women who look exactly alike struggling to see which one of them truly is the better woman. His wife, Tsukasa, barely even kisses him anymore, much less have sex with him, leaving his dirty thoughts to be the only thing that can alleviate his frustration. But then on his drive home, seemingly by magic, a large house with the words "Casa di Sosia" appears from the gathering mist on the side of the road. He's almost certain that building has never been there before...and as curiosity gets the better of him, he steps inside.
He's met by a woman named Emily, the owner of the Casa di Sosia...the "House of Doubles". She explains to him that the Casa di Sosia is a house where every woman inside has a double, and exact copy of herself; and her voice makes Corey's heart race when she says that any woman inside and her double would be willing to do anything for the customers of the Casa di Sosia.
Emily hands him a catalog, and tells him to choose from the women inside. She refuses payment, saying that his pleasure will be well enough to make it worth the transaction. He chooses a woman named Rosie, a gorgeous blonde he remembers seeing once in a movie. He feels guilty...but the more he thinks about it, the more he believes that as long as he doesn't touch Rosie or her double, it isn't technically cheating.
Corey is ushered into a bright room lined with tapestries; and just as Emily had promised, Rosie and her double both step into the room. Corey is immediately awestruck; everything about the two blondes is exactly alike. They tell him they are willing to do anything and everything for him, but when Corey voices his fantasies about seeing doubles fight, he expects them to be angry...but instead the two blondes turn to each other with fire in their eyes, as if they had been waiting years for a chance to tear each other apart.
Slapping, scratching, pulling hair the two desperate blondes begin their attack, screaming at each other with sexual rage. They begin crushing their clothed forms against each other, moaning as their emotions run hot. Screams of pain turn to moans of pleasure as the two women quickly become turned on by their catfight. They know that desperate, sexual combat is the only way for either woman to come out on top; and when the two of them finally lock into the competitions their primal instincts have wanted all along, Corey is immediately thrown into a world where his sexual fantasies can finally become a reality.
Corey returns several days after the fight between the blondes ends in desperate waves of pleasure...he's completely hooked. He chooses another pair of doubles, a beautiful brunette named Emma. She and her clone know immediately what Corey wants from the moment he steps in; and his heart races furiously as the two Emmas fight each other just as desperately, if not even more so, than the two blondes from before.
Corey is able to watch them fight desperately, using every inch of their bodies in a desperate, sexual struggle for dominance. They're fighting each other over Corey. Fighting each other over who is the better woman. Who has the better body, the better stamina...but as Corey becomes entranced by watching two desperate women, mirror images of each other in every way, he can't help but sense an even deeper question that lies within the aura of furious, erotic catfighting. Not only are they fighting to see who's better...they seem to be fighting over who is real. Which one of them is the original...and which one of them is the clone? There's only one way to find out...and both Desperate Doubles will stop at nothing to win!