Tokiko Enomoto finds out that her husband Kazuya, who mostly lives at an apartment near his work while she and their children live at home, has been having an affair with a live-in mistress, Ryōko, at his apartment. Tokiko tells her two sons, Tarō and Jirō, that she has decided to divorce their father. The children are shocked but understand their mother's position. Kazuya realizes the damage he has done and tries to remedy the situation.
| Actor | Role |
|---|---|
 Yukiyo ToakeTokiko Enomoto | Tokiko Enomoto |
 Kunie TanakaKazuya Enomoto | Kazuya Enomoto |
| MMasatoshi MurakamiTarō Enomoto | Tarō Enomoto |
| SShinji MotoyamaJirō Enomoto | Jirō Enomoto |
 Mariko FujiRyōko | Ryōko |
 Keiko SaitōMidori Sadaoka | Midori Sadaoka |
 Saburo TokitoPhotographer | Photographer |
 Takanori JinnaiTsutomu Sadaoka | Tsutomu Sadaoka |
 Noriko HayamiStudying Woman | Studying Woman |
 Kyôhei ShibataKageura | Kageura |
 Haruko KatōKuniko Sakazaki | Kuniko Sakazaki |
 Masahiko TsugawaVoice on tape | Voice on tape |
| TTomoko IkutaNot listed | Not listed |
| OOsamu ShigematuNot listed | Not listed |
| MMasanori IrieNot listed | Not listed |