Sabu is accused of beating a noodle vendor in Yagenbori and stealing his money. He is taken to prison and is beaten by the inmates. A man, Matsukichi is also thrown in after being beaten and tortured. He was a member of a gang the stole a thousand ryo, but will not divulge the names of his accomplices. Sabu invites Matsukichi to escape with him. They manage to escape, and Matsukichi reveals that the ronin who used him will kill his mother and sister if he talks...