After receiving a phone call from a woman whose child has contracted polio, government official Masayoshi Sakata decides to do everything he can to eradicate the disease.
Masayoshi Sakata
Noriko Nemoto
Yumi
Satoru Kumagai
Jiro Nemoto
Professor Hiraoka
Setsuko Sakata
Mother Nobu
Director Tagami
Abe
Hani
Hikotaro's Mother
Mother
Staff Member at Health Ministry
Muramatsu
Director of Infant Care Facility
Dr. Kuwahara
Dr. Nishina
Suzuki
Sachiko
Chief of Investigation Dept
Tobimatsu
Hikotaro Nemoto
Kumamoto Speaker
Tachibana
Kurokawa
