Protagonists of book - enigmatic investigator Rodion Меглин and his young probationer Есеня are contest with pitiless maniacs, and every day threatens by him by death. But secrets are related not only to the serial killers - heroes carry secrets in itself. A mother Есени perished 17 back under enigmatic circumstances. Who her did kill? Why does father Есени, public prosecutor Стеклов, refuse to investigate this murder and even to talk about him? Of what consists mysterious Method of Меглина, allowing to him in short space to untangle all crimes? Who did give a right to kill the maniacs disrobed by him to Меглину? Who is a mysterious criminal hiding under ником of "Ты-Меня-Не-Поймаешь" and accomplishing murders stranger hands? What feeling is felt by Меглин to the probationer - and in general, is he capable on the human feelings?A "method" is a not that case, when a reader guesses easily foresees main villain, what all will end. The plot of book every now and again accomplishes unexpected turns - only stick to. Boring it will not be exactly!