Rebecca is 17 when police find her next to a man's burning body. She can't be spoken to, doesn't even know that her real name is Rebecca. She was kidnapped when she was two and has been held captive by the dead man, Olaf Reuter, ever since. The girl was exposed to a perfidious system with which Reuter raised her to become a pseudo-religious fanatic who was fixated on him and unable to communicate with strangers. Not even to tell Klara Blum and Kai Perlmann how Reuter died – or what the traces of another child found in Reuter's house are all about. Neither Klara nor psychologist Prof. Schattenberg manages to find access to Rebecca. Only on Kai Perlmannshe reacts, he is her new "educator". Perlmann feels uncomfortable in this role.
Because Rebecca has to be protected – but Klara Blum and Perlmann have to find out whether the second girl was in Reuters' sadistic violence. "Tatort: Rebecca", written by Marco Wiersch, confronts Klara Blum and Kai Perlmann with psychological borderline situations in which Perlmann in particular has to prove himself. The film deals intensively and movingly with the effects of a religiously veiled extremism, exercised on the young girl Rebecca. In the production by the young director Umut Dag, Gro Swantja Kohlhof impressively embodies the distraught and disturbing title character.