Some parents deliberately let their children create car accidents to extort money from drivers. This is a news event that once caused a sensation in Japan. Oshima put the news event on the screen to further explore the behind-the-scenes story. The young man's father is a disabled veteran injured in the war, and his stepmother used to be a bar girl. this family is the epitome of Japanese postwar society. At the crime scene, the father worked out a plan, stood in the distance and watched, while the mother and the teenager wandered the streets, looking for targets. First, the mother made an example for her son, while the father encouraged his son to take up "work." The father still retains the militaristic father, constantly squeezing the money earned by the teenagers and stepmothers through blood and sweat; although the docile stepmother protects the teenagers, she is still unable to resist the idea of his father and blackmail to make a living; the precocious son understands the family situation and his own responsibilities and tries his best to do his "work" well. They wandered everywhere, in Hokkaido, a driving girl to avoid them, hit to death on the side of the road, the teenager had the idea of suicide. They returned to Osaka and the whole family was arrested. At first, the teenager never admitted that he had committed a crime, but in the end, he shed tears of remorse for the Hokkaido girl.