While the alleged child murderer Matthias Mattner is able to escape from his court hearing in Lübeck, the LKA target investigator Nora Weiss experiences her own personal nightmare. Her nine-year-old godchild Daina disappeared on the ferry from Latvia to Lübeck. But she doesn't have much time to look for the child because the case is assigned to her superior, Jan Geissler. Nora herself is assigned to the fugitive Mattner. At the same time, he has to pull himself together with his new colleague Simon Brandt. Nora reopens the closed case of the missing girl Lisa Harms and tries to contact the parents. Nora finds it difficult to remain professional: Intuitively , she suspects a connection between Mattner's case and Daina, but she can't prove anything.
After a few days, Mattner got in touch and blackmailed Nora: information about Daina's whereabouts was only available if Nora kept silent to her colleagues. She is his last chance to prove that he is the victim of a miscarriage of justice. The investigator agrees to Mattner's rules because the fear for her godchild is unbearable. With the dangerous solo effort, she can no longer confide in her closest friend, Daina's mother, and her father, the altruistic pastor of the church. At night, Mattner lures them to the confusing port terminal in Travemünde.