Advent in the Palatinate: The season of wine festivals has seamlessly transitioned into that of Christmas markets. Visiting the markets is a must for Chief Public Prosecutor Röder and his family, but the romantic atmosphere is profoundly disturbed by the murder of a Santa Claus. Initial clues lead into the drug scene, and the crime seems to be quickly resolved. However, when a second murder occurs, Röder must delve deep into a very dark chapter of German-German history.