When writer Kaoru and her sister-in-law Miyoko fall in love with each other, Kaoru's jealous husband tries to put an end to their relationship by making life difficult for the two women.
Inada plays Betty Yoshida, a singer and dancer from America who arrives in Japan to go on tour, only to be swindled by scheming managers. Penniless and cast to the streets, Betty is taken in by Oki (Nakagawa), a talented tap dancer who introduces her to a group of struggling musicians living and working together.
