An old woman has died and her widower with dementia confesses to killing her. After this, the story goes back in time to show the events leading up to her death.
Ritsuko, Yoshio's wife
Tatsu, Ryôsaku's wife
Takeya Nakamura
Saeko Nogawa
Naoko, Yoshio's daughter
Takao, Yoshio's son
Ryôsaku Morimoto
Yoshio, Ryôsaku's son