Petra Gmeiner and her boyfriend Marc Kirnbauer run a separation agency. People who want to separate and do not want to take action themselves can entrust Petra and Marc with the delicate task. When Petra Gmeiner is found dead at the foot of a shell, it quickly becomes clear that someone must have "helped". Clearly, the investigations immediately focus on a host of injured separation victims. But Petra's ex-husband would also have a motive, because there is a bitter war between Petra and him over their daughter Lea. Petra had a hard time with her, because mother and daughter were only on a confrontation course. It was already so bad that Petra had considered sending Lea to a boarding school. But a prospect that would not have been an option for either Lea or her father.
