A wheelchair-bound daughter is told that her mother's death was a murder and asks for an investigation, gradually learning the secret of her own birth.

Reparto

田中好子

Mitsuko Iga

本田博太郎

Joji, Mitsuko's husband

結城しのぶ

Akiko, a secretary

片桐夕子

Masano, the maid

平幹二朗

Kotaro, Iga Kanko's president

Kyoko Kamimura

Kotaro's second wife

永井智雄

Yukichi, Mitsuko's grandfather

小島三児

Ryutaro