Blackmail Ichidaiki.

Shinjiro Iijima (Hakuryu) is a blackmail genius who never misses his prey. Using a robbery brought in by the local gangster Kasahara (Kazuki Namioka) as a joke, he sets up a blackmail trap, but there is a big mystery behind the robbery. Iijima, who pursues the case, finally reaches a local authority. And there's an even bigger shadow behind it... What is Iijima's trap for blackmailing the world...!