Ratking: Police Commissioner Aurelio Zen had crossed swords with the establishment before - and lost. But from the depths of a mundane desk job in Rome he is unexpectedly transferred to Perugia to take over an explosive kidnapping case involving one of Italy's most powerful families.
Vendetta: Inspector Zen has a problem: an impossible murder, recorded on the closed-circuit video of Oscar Burolo's top-security Sardinian fortress. As Zen goes to work, he is once again plunged into a menacing and violent world where his own life is soon at risk.
Cabal: When, one dark night in November, Prince Ludovic Ruspanti falls 150 feet to his death in the Chapel at St Peter's, Rome, Inspector Zen finds that getting answers isn't easy, as witness after witness is mysteriously silenced - by violent death. To crack the secret of the Vatican, Zen must penetrate the most secret place of all: the Cabal.