Der Fahnder plot
An unconventional policeman has his working area in the Ruhr area. Speurder Faber is an absolute loner, an insider and someone who sometimes loses his patience. He has his own opposite as a partner with Max Kühn. Many of the cases have their origin in a 'meeting' between Faber and his girlfriend Susanne, who first has a snack bar and later a cafe. Dirty things are done there. Faber's methods don't all go by the book, which drives Faber's boss Rick to despair. The team also consists of the uniformed officer Otto Schatzschneider, who works in the office. They call their workshop "Aquarium".