

Shoichi Kokubun is a roughneck street musician, who has a brother that is determined to propel him into stardom. In attempt to catch the attention of a popular jazz band, his brother appeals to their manager who has the power to make him a star. In a graphic portrayal of love, betrayal and success, Shoichi brews up a storm with a 'rat-a-tat-tat' on the drums.
Umetsugu Inoue
Midori Shima

Zenji Yamada
Zenzo Shima

Keiko Amaji
Tokiko Arima

Mari Shiraki
Mary Oka, the dancer
Toshio Oida
Charlie Sakurada, the drummer

Nobuo Kaneko
Toru Sakyo, the critic