Eriko (Yamaguchi) was married to a husband who ran a pleasure boat and a guest house, but lost him and became a widow. Her mother-in-law, Kiyoko, was planning to make Eriko's second son or third son her husband. One day, the third son, Shinzo, is told to give a massage to Eriko, who has hurt her back. Eriko, who has been massaged and feels disgusting, ends up having a relationship with Shinzo. The desire of a widow with a prime does not stop and finally on a pleasure boat.
