Bi-racial bartender Chuji (Tanabe Seichi), son of an Okinawan mother and a black American GI, moves into a music career after a record executive hears his dynamic blues harmonica playing.

When young yakuza Kenji (Ikeuchi Hiroyuki) collapses in the alley behind the nightclub where Chuji works, his life is saved by Chuji's girlfriend, a veteran's assistant. It's the beginning of a dangerous association, as the gangster introduces the bluesman to another way of life -- and soon big trouble and murder comes his way.