Notes of Vidok, Chief of the Paris Secret Police, memoirs of Europe's first private detective and controversial personality, are offered to the reader. The adventurous past and remarkable talent for reincarnation make the French attacker a thunderstorm of the underworld. The events described in the book are presented vividly and colorfully, which allows you to fully enjoy the flavor and mores of criminal France at that time. Vidok's many years of experience, reflected in the author's memoirs, served as a huge impetus for the development of the detective genre and became a source of inspiration for other writers.