Misaki, a lonely housewife, spends her nights in solitude as her husband is always away on business trips. One day, she discovers that her middle-aged neighbor, Kimura, writes erotic novels and becomes captivated by his writings. When Kimura comes to retrieve the manuscript he lent her, Misaki tries to convey the intensity of his prose by reading a steamy scene aloud. However, she can no longer contain her own arousal and ends up touching herself. What was never meant to happen between the two becomes an intense, sweaty affair sparked by this act of self-pleasure.
