Do you know how to properly fight demons and demons who are trying to break into our world from the underworld itself? Just don’t smile, thinking that this knowledge will never be useful to you. And rejoice at the opportunity to acquire them - after all, if the former athlete, and now quiet alcoholic Fyodor Sinyakov, had been armed with them in advance when he went to help out his son who had gotten into disbat, then it would have been much easier for him... But the tireless Fyodor Andreevich, having given up drinking and remembering quite a bit forgotten martial arts skills, with the help of the young witch Daria and her stern brother, battalion commander Darius, caused significant damage to the plans of the unleashed evil spirits and the mysterious Forces behind them...