A respectable and middle-of-the-road member of society does a good job at work and is accomplished as a middle manager. His employee takes him to a parlour where he unfortunately is scammed, ripped off and victimized. The man encounters debt collector Asamura and soon finds himself becoming acquainted with the criminal underbelly of Tokyo. Above the surface all seems ordinary, but here the man finds a den of thuggery and he is part of it.