Shinji, a son who has been raised by his father, Shinichi, who is a gentle banker. A new mother, Saeko, has married into such a family. Shinichi fell in love with the bewitching and beautiful Saeko, and their lives had completely changed. Shinji is dissatisfied with his mother-in-law who changed his beloved father. One day, Saeko invites a stranger into her house. Saeko's stupidity unfolds there...and it is connected to the dark world of her father, Shinichi.
