Wife Hitomi moves into an apartment complex, troubled by her husband's cold attitude and finding solace in masturbation. Her neighbor overhears her moans through the thin walls and, driven by his own pent-up desires, rapes her. Though initially shocked, Hitomi is overwhelmed by the pleasure of sex she hasn't experienced in a long time and unexpectedly reaches orgasm. Awakening to this new desire, her longing outweighs her guilt, and she begins seeking intense, illicit sex with her rapist.