When the witness tells about the mistreatment of the defendant Zeynep G., the women in the high-security room of the Berlin Court of Appeal take a longer look at each other over the heads of the lawyers for the first time.

The defendant smiles and nods in agreement to the long-haired woman.

The two women know each other from another world and another time.

Because the witness Carla-Josephine S. is a convicted IS terrorist. The court let her come from the penal institution in Willich, where she is serving a five-year prison sentence. Among other things, because she abducted her children to the Islamic State in Syria and her eight-year-old son died in a bomb attack. So what does she know about Zeynep G.?