Shohei Yoshimi, a university student, is in love with Hatsumi Kurosawa, a tall, beautiful married woman who lives next door to him in an apartment building. Hatsumi, who is sexually frustrated, also begins to fall for Shohei after seeing his erect crotch. Her feelings grow stronger and she takes bold action. An affair with a young man who is more than a decade younger than her makes this ordinary married woman burn with lust...