Wagging rascals find the head-shot corpse of local mother Marion Heidt, who lived separated since eight year-old son Dennis died a month before in a car crash. Father Thorsten Heidt admits having sneaked in and stolen a fat cash envelope, also claims she cheated on him, even doubts his paternity. The envelope leads to businessman Heiner Castell, whose less gifted son Fabian was prodigy Dennis's music class buddy. The team discovers strange (mis)matches between parents and sons.
—KGF Vissers