At the crime scene of the murdered doctor Kai Wülker, the trail leads to a cold case: intact DNA from Jessica Sonntag, who has been missing for more than 15 years. Commissioners Katrin König and Melly Böwe confront Jessica's family with this upsetting news, which is received differently by all family members. Evelyn Sonntag, a deeply sad woman, always believed that her daughter was still alive. The father, Robert Sonntag, hoped above all that his daughter was at least granted a quick death. He is shocked that hope and fear are starting all over again. And then there is the dead woman's brother, Henrik Sonntag, whose life has been thrown into complete disarray by his sister's disappearance. In the search for Jessica, King and Bow have to put the puzzle of the past back together. But it soon becomes clear that the doctor will not be the only victim.
—ADR Das Erste