Das Duo was a German crime series produced by TV60Filmproduktion (Sven Burgemeister) for ZDF.
Swiss actress Charlotte Schwab played the main role as Commissioner for Criminal Investigation Marion Ahrens, who initially works alongside Lizzy Krüger (Ann-Kathrin Kramer), and later Clara Hertz (Lisa Martinek).
[3] Head of Criminal Investigation Commissioner Marion Ahrens is deeply connected to her hometown of Lübeck.
After eleven common cases, and garnering more affection from her coworkers, Krüger leaves to take care of her family-owned breeding stallion.
Police Commissioner Clara Hertz replaces Lizzy Krüger from the twelfth case onward.