The death of Willy Schubert, over 80 years old, came as no surprise as he had been seriously ill for a long time. But an attentive medical officer discovers that Schubert's death was caused by drug poisoning. Thorsten Lannert and Sebastian Bootz now have to investigate within the grieving family. There is daughter Eva, caught in the conflict of taking care of her parents and still not neglecting her job and her children. Her husband Holger, who was always encouraged by his father-in-law, is now officially the head of the law firm, but still depends on the old man's approval. And Peter, the son, whose sense of family ties is much looser, but who could really use his inheritance.
Even Brise, Willy's beloved wife for 55 years, who lives less and less in reality due to the onset of dementia, should not be ignored. But the inspectors also wonder why the Schubert family doctor assessed his patient's life expectancy so differently from all other doctors.