Rome is shattered by a series of gruesome murders that paint the Eternal City deep red. The suspicion grows that these atrocious crimes are connected with the return of one of the most heinous serial killers of our time - Karl the Butcher.

Cetto and its city council were arrested, but in prison the conspiratorial former mayor makes no earning name as the gratitude of the powerful secretary. These decide to replace some MPs mysteriously killed precisely with Cetto and two other characters: Rodolfo Favaretto and Frengo Stop