The 'Abe' and 'Mochida' families, who live in the same apartment building, have been close with each other. One day, the Abe family holds a graduation party for their daughters, Momoko and Natsuki. It was supposed to be an unforgettable day surrounded by friends and family, but that night, Natsuki is raped by Momoko's father, Hiroshi… Nine years later, Natsuki moves to Tokyo and gets married. However, due to her husband's transfer, she returns to her hometown. A reunion with Momoko... and a tragic reunion with Hiroshi. The nightmare she had suppressed resurfaces...
