The private detective Francesco Marchetti does not think much when he learns from a good friend in Florence that he is being threatened by the mafia. He believes that he can clear the case quickly, but not only puts himself at risk but also others. Ultimately, he is forced to commit murders for the underground organization. Can he escape the unpleasant obligation, while in his environment no stone seems to be remaining on the other? An exciting crime novel of a different kind, where the hero suddenly has to become the culprit in order to survive. This is the first volume, a second one with the sequel will follow.