layboy Umberto Ruspanti falls from a bridge, an apparent suicide but minister Colonna asks Zen to investigate and he finds the dead man's flat was ransacked. His last diary entry read AOC and his nervous lawyer tells Zen he was trying to make much-needed cash from a valuable and illegal sale. Later Zen is approached by the fugitive Massimo, fleeing the powerful and illicit right wing group the Cabal, whom,he claims, killed Umberto. At the funeral Zen meets glamorous call girl Arianna who tells him that Ruspanti had been involved in criminal activities and he was to get himself off the hook by betraying the Cabal. His information was in a safe deposit box, which she helps Zen procure. But then they are threatened by a gunman wanting the box. Is he working alone or does the Cabal really exist?

Résumé de IMDb.com