Country constable Frank Koops' first-ever murder victim in St. Andreasberg, a town in the Harz forest, is local crack shot Vanessa Riemann, who helped her bothers Patrick and Marco run a tourist inn, which wasn't lucrative, so they try guided tours but are looking to sell the state. He's forced to accept as 'partner' passing-by public prosecutor office official Miriam Nohe, who seduces him. Koops talent as character judge gets the better of all liars, working from the assumption it's all about the cash loot of a nearby bank robbery.