Preparations for the "100 years of Lünen police station" anniversary celebration are in full swing, an event set to conclude with a tribute to outstanding investigative work. An honor the team surrounding Brandt and Wiesel might be worthy of considering their latest case: bar owner Robin Bürger has been found dead in his cooling chamber. The investigation proves to be increasingly complicated as everyone affiliated with it either tries to hide the truth or plot against one another. Soon, Brandt and Wiesel are certain that all of them are two-faced. How right they are with that assumption and how deeply the case will come to affect their own lives are the questions at the heart of this 5th "wieselflink and brandtgefährlich" film.
| Actor | Role |
|---|---|
| JJan N. SchmittTom Wiesel | Tom Wiesel |
| KKevin TiggesMalte Brandt | Malte Brandt |
| AAnja KlukasDorothee Seidenpfennig | Dorothee Seidenpfennig |
| MMartina KubatzkyMarlene Köster | Marlene Köster |
| GGaby Dengel-LorenzDoris Pfeiffer | Doris Pfeiffer |
| CChristopher WolkAdam Rademann | Adam Rademann |
| GGunnar MadeheimJörg Mausch | Jörg Mausch |
| AAndré LorenzRaphael von Roth | Raphael von Roth |
| CChristel SkibaLieselotte Messerschmidt | Lieselotte Messerschmidt |
| RReinhard KrügerWilli Kowalski | Willi Kowalski |
| GGero BrötzKochazubi Stefan | Kochazubi Stefan |