SoKo Neustadt is on the trail of Hogtie-Klaus again. The new colleague Wiebke is put on the case right on her first day at work. But she's not really making any headway with the investigation. And a call from a witness makes her unsure. It's soon her sister Janette's turn. Wiebke also falls into his hands. At first both are not very enthusiastic, but then they like it.