Three years after her husband died, her mother, Eriko, has gotten used to living alone with her only son, Koichi. One day when her peaceful days continued, a ridiculous sight jumped into her Eriko's eyes. Her housewife friends Fumie and Koichi are half-naked and hugging each other! It feels like her beloved son has been robbed by someone else... and the other person is an old friend she trusted. Eriko's double betrayal of sadness and anger drives Eriko to her unexpected actions...
