A new pain for Luca Benvenuto. Enzo Tiberi, the man who many years before, thanks to boxing, saved him from taking the bad path of crime, has been killed, stabbed. Luca does everything he can to solve the case. But he must also deal with the testimony of Ettore, Balsamo's Mephistophelian right-hand man, and the definitive release of Giulia Corsi.