After losing his job due to restructuring, his husband became addicted to alcohol and mentally ill. Meanwhile, his wife Kiyomi (Natsuko Kayama) works hard to support the household. The hard life continued, but it was Makoto's presence as an only son that allowed him to endure it. However, the son peeks at the mother's masturbation and begins to be conscious of the mother as a woman. A mother who loves her son and a serious son who loves his mother are drowning in unforgivable sexual urges.
