Charlotte Lindholm and her boyfriend Tobias Endres are making plans for the future: they have been a couple for over a year, love is great and they finally want to move in together. The only problem: Charlotte hasn't yet dared to let her roommate Martin Felser know about her plans. Then Charlotte Lindholm is entrusted with a new case: Herwig Gruber, the managing director of the food company "Corte Germany", died in a car accident. The State Criminal Police Office assumes an attack because Gruber was involved in a spectacular food scandal some time ago. "Corte Germany", the German branch of an American multinational, had put a new spaghetti sauce on the market that was contaminated with pesticides at great advertising expense.
Although Gruber was acquitted of all allegations in a trial, he was the guilty party for the victims' families. Charlotte's investigations lead to Lothar Pickert, whose daughter ate the contaminated sauce and has been severely disabled ever since. Pickert had already threatened Gruber several times. When Chief Inspector Lindholm contacts the respected law firm "Fisher & Bell", which represented the interests of "Corte Germany" and defended Gruber in the process, the case takes on a new dimension for her. To her surprise, she finds out that her boyfriend Tobias had worked as a lawyer in the law firm. Why didn't he tell her about it? Did Tobias have anything to do with the "Corte Germany" case? Shortly thereafter there is another murder victim: Liane Wagner.
The young woman was a secretary in the law firm some time ago and had a hot love affair with Tobias Endres at the time. Tobias behaves increasingly suspiciously in Charlotte's eyes. In the course of their investigations, the evidence that Tobias Endres has something to do with the scandal and the murder of Liane grows. Can Charlotte still trust the man she loves?