The son of Doga

When an unknown evil genius tries to explore the structure of the dusk with scientific methods, when prisoners in prisons create lawlessness, when old and new friends ask for help, it is very difficult to stay aloof. But how to break, how to catch everything, especially if the main culprit of recent events is still free if the patrols are looking for him not there at all, but you are practically deprived of strength?

The village precinct policeman and the head of the district department of the night patrol will meet again to solve the problem once and for all.