Saho lives with her husband and his parents. One sweltering midsummer day, her husband's younger brother Kenji comes home after being laid off. In the midst of his days of being shunned and frustrated by her family, Kenji is confused by Saho's sweaty body and unintentionally attacks Saho. While her husband is on a business trip, she is raped and resists Saho, but she cannot dislike Kenji and is tied up again before her husband returns. A midsummer love affair with dripping sweat.
