The world has recovered from decades of strife by separating men and women entirely. The world has grown to a technologically advanced utopia, but the only contact between the two genders occurs at designated reproduction facilities such as Hyacinth. Determined to return the world to its natural order, the Nuclear Advocates recruit a young man, Bast, and a young woman, Erica, to destabilize the Hyacinth facility. Caught in the middle, Bast and Erica become the catalyst for a new type of sexual revolution.