Mikako, a married woman living in an apartment complex, is frustrated by her husband's lack of sex, likely due to his busy schedule. She frantically tries to console herself to ease her loneliness and frustration. Just as she reaches orgasm, she feels someone looking at her, and when she turns to the window, there is an older man. Mikako mistakes this man for a peeping tom and is drawn to him... The two, who were never meant to meet, end up in a sweaty, passionate affair after witnessing him masturbate...