There are no traces of decay or excrement that crime scene cleaner Heiko Schotte is supposed to clean away. That would not be a problem for him. There is also no large pool of blood that he would have to remove. That would not be a problem for him either. There is not even a tiny bloodstain to clean away. In fact, there's nothing left to do, because Simon Ambestetten has already done all that. And therein lies the problem: Schotty's client obviously has a cleaning compulsion...