A man operates a small real estate business near Osaka. A man from Tokyo asks for help in buying a large tract of land in order, he says, to build an automobile factory. But by accident the realtor learns that the Tokaido Railway Line is going to be built directly across the land just acquired.
After losing all his money, Kizuka Keita, a seller on the black market, is trying to commit suicide. But he is saved by Morigen, a broker on the azuki beans market. A young man tries to regain his wealth in the bean market.
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...
