Shoichi Kokubun (Yujiro Ishihara) 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.
Plans to build a touristic hot spring on the island of Izu Oshima run afoul of the Kobe yakuza group, which intends to use the island as a relay base for drug smuggling.
It was five years ago when Minako spent a night with Sozo, younger brother of her ex-husband. She now lives in a local town with a rich old man who owns a dry goods store. Minako travels to Tokyo on business every three months, during which time she continues to meet Sozo, who has married the daughter of his respected teacher.
