Takashi Senda

Ryokichi Ibuki is a clerk who learns company "top secrets" and becomes an industrial blackmailer. Kaoru Koizumi, a confidential secretary in love with Ibuki, reveals her firm's plans to him. She resigns when Ibuki blackmails her employer but Ibuki gains another spy in Ayuko Ichinoi...

The days leading up to a toddler's second birthday are seen alternately from the child's point of view as well as that of his parents.