Wilsberg plot
Georg Wilsberg, a man in his late fifties, runs a bookstore in Münster and also works as a private detective. He regularly buys books from the deceased, and if there are any doubts about the circumstances of the death, the relatives are inclined to hire him for further investigation. Other clients appreciate the opportunity to discreetly hire a private detective by pretending they are only looking for rare books. During his investigations, Wilsberg disregards legal regulations, resulting in several arrests.