Kloos does not deal with armed robberies and murders. However, that doesn't mean his job is boring. Even without guns and knives, there are moments when the professional detective is scared out of his wits.
And that's exactly what happens in the mysterious case assigned to him by Marie, Olga's niece. How is it that the speedometer of a parked truck reads exactly 72 kilometers every night? Who takes it and where do they go? Can a detective really solve a tangled story with only a scent as a clue? And is it possible to crack a case in his sleep?