Dr. Karin Bogen, also known as the 'gardener of neuroses', did not want to believe it and doubted her efficiency. Not only had the seventeen-time murderer Tobias Henner, whom the media called the “Santa Claus killer”, escaped and fled during a visit to the Christmas market, but Susi had also disappeared since the last Christmas party, when the Christmas tree went up in flames. She was a shy and severely traumatized young woman, to whom Tobias Henner was the only one who had found access. But he was - after all, what Dr. Bogen knew - in a ship explosion off the coast of East Friesland to death (so “The Santa Claus killer 2” ends). Although his body had never been found, but the sea had been stormy that day, so that no one seemed surprised. That's why Dr. Bogen was completely taken by surprise when she suddenly had Susi on the phone, beaming with joy and explaining that she was now in Wismar on the Baltic Sea with a man whose name she couldn't say and wouldn't be coming back to the home for the time being. But the male voice in the background completely threw Dr. Bogen off, because it sounded exactly like Tobias Henner's. But that couldn't be, could it?
When four people die violently in quick succession in Norden-Norddeich, the pre-Christmas calm in East Frisia is once again over. Overtime and Christmas parties have been canceled for everyone, and it is uncertain whether the traditional game of dice at Café ten Cate can really take place on December 5. If the Santa Claus killer strikes again in East Frisia, Ann Kathrin Klaasen, Holger Bloem and Jörg Tapper will be at the top of his list.