A mysterious murder of a girl brings Maik Briegand (Mišel Matičević), who, like his father and brother, became a police officer in GDR times, back to the place of his childhood: Lauchhammer. Together with the LKA investigator Annalena Gottknecht (Odine Johne), Briegand begins to remove the secrets of the past, layer by layer, which confront him with the trauma of his youth.