This time the detectives deal with the case of a murdered professor. One day a cleaning woman finds him shot to death in his own study. The detectives will thus investigate whether the murder is connected with the victim's persistent effort for the removal of the University's quaestor because of the latter's strange machinations during the reconstruction of the University building. And they'll also want to know why the murderer took the great risk involved in killing the victim on the university soil. The search for the answer to the question who could wish the death of the peculiar but honest professor will take them farther than they have expected.

Honza Marak has long since abandoned a career in IT and has bought a cottage on the outskirts of a small village, where he’s settled in with his wife Marketa, daughter Anyna and son Sayen. He works in the woods as a forest labourer repairing roads and enclosures, cutting wood to sell and assisting the foresters. Marketa earns a living as a masseuse and alternative healer, making use of various mind-altering plants and mushrooms, which leads to conflict with the old inhabitants and eventually with drug enforcement. Daughter Anyna attends a distant school where her grades deteriorate as she wanders the woods learning from nature rather than from her textbooks.