Tokutaro is an orphan child who becomes a street candy vendor. He sells candies, humming a song he learned long ago from his mother. One day he met with thieves along the way and this encounter changes their lives in ways they cannot imagine.

Itami, a young policeman, meets his high school friend, Tetsuo, a gangster, at a roadblock. As they rekindled their friendship, a complex relationship is established between them.