Without knowing their names a man and woman have sex. Afterwards they introduce themselves and begin an affair. The woman feels empty without a man. The man is married with a child but he needs more than what his wife can provide.

Sakurai Shoichi meets Nishi, a man who lost all his money in gambling. Attracted by Nishi's personality, Shoichi invites him along on a gambling trip to the Tokaido. Nishi wants to raise money for his son's college entrance fee, so he wants him to play mahjong and win. However, at an inn in Hakone where Nishi is friendly, Shoichi is tricked by the yakuza

Rokuheita Narumi is fascinated by oriental art and works as the director of the Saho Art Museum in Nara. His wife, Noriko, is unable to leave Tokyo, despite his wishes, and the two live separately. Feeling lonely and neglected by her husband, she immerses herself in the depraved life of the city and continues to have a loveless relationship with a doctor, Katsumori. One day, Narumi arrives in Tokyo and learns of Noriko's affair, but he cannot divorce her for the sake of their child, so he devotes himself to his work.