Bernd, a 13-year-old paralyzed boy, has met a man, Mr. Soldan, who has taken him out in his wheelchair a few times. Bernd has problems because of his physical helplessness: his friends play soccer, are free, carefree and he is confined to his wheelchair. Soldan also lives in a constant state of mental tension: he has served a prison sentence for stealing money, but has not given up the stolen money. The basis of the close relationship between Soldan and Bernd is their outsider status in relation to the world around them. Long before their acquaintance was finally established, Bernd was already observing Mr. Soldan. The strange thing happens: the 13-year-old boy takes on the role of the detective, who then becomes the perpetrator.