St. Petersburg, my favorite city. Kupchino, my favorite area. Real people. Real events. You, dear readers, have the right not to believe it, but everything described below actually happened. Well, or almost everything. Let's say forty-five percent. Which, you see - in our difficult and troubled times - is absolutely and not less. And the final background of this complicated story will become clear only in the Epilogue. There, as expected, the name of the Main Villain will be announced...