1893. A deadly fire engulfs a Parisian bookbindery. Then, a celebrated artist is stabbed to death in the street. As panic spreads the police struggle to keep pace with a killer growing ever bolder. Soon amateur sleuth Victor Legris and his bookselling team are on the case. But the murderer seems to be taunting them, leaving cryptic notes at every crime scene and even placing a death notice in the newspaper. Who is this theatrical killer, and can Victor untangle the mystery before they strike again?