"Colder Than Death" is the title of the first case that the new Frankfurt investigative team Margarita Broich as Anna Janneke and Wolfram Koch as Paul Brix have to solve. He - Paul Brix - is the newcomer with many years of experience at Sitte in Frankfurt, she - Anna Janneke - is the career changer who previously gave psychological advice to the police in Berlin. He is renting from an old friend (Zazie de Paris). She hasn't really arrived in Frankfurt yet. On their first day together in the Frankfurt Homicide Unit, they are not exactly welcomed with open arms by the new head of the commissioner, Henning Riefenstahl (Roeland Wiesnekker), and at the same time are confronted with the terrible murder of an entire family.
Meet at the crime sceneThey spot the courier Achim Lechenberg (Sebastian Schwarz), who called the police because he noticed that a CD with the same title was playing in the house in an endless loop. It quickly turns out that a member of the family, 17-year-old Jule (Charleen Deetz), and her young tutor Miranda (Emily Cox) are missing. Were they witnesses and fled, were they kidnapped, or did they have something to do with the murders themselves? And what about the ominous CD? A race against time begins. There is a lot to do for the new Frankfurt commissioners Anna Janneke and Paul Brix. The broadcast of the second case, entitled "Behind the Mirror," is scheduled for September. From April 13th to May 24th the third case will be filmed.