Joe Shishido is an ambitious bike racetrack tout who becomes inadvertently involved in a triangle with a vulnerable prostitute (Izumi Ashikawa) and her brutal yakuza pimp (George Ai).

Somewhat unique as it appears to be one of the very rare appearances of master thespian Itô in a yakuza role.

Because of trickery, the Jinya Group has only seven days to complete a mountain road project or it will forfeit a major dam construction job to the scheming Ojika Group.