Janssen plays an ex-CIA agent who has become an author, writing both non-fiction exposes (Phillip Agee was in the news at this time) and fiction spy novels. The CIA is on his case, in the person of Arthur Kennedy, CIA chief in Athens, where Janssen is staying. Janssen is pursuing a case that interests him, while dodging the traps set for him by Kennedy and trying to help Maurizio Merli, a former colleague with personal problems.
Paolo Mancuso is a gang boss whose rivals want dead. During a failed assassination attempt, he is bitten by an infected lab rat. In the short time he has left to live, he tracks down his enemies and kills them one by one.
Rome chafes under the rule of the Emperor Domitian and his Egyptian mistress, Artamne. A mysterious champion arises to fight against the Emperor -- a masked man known as the Red Wolf. In fact, the Red Wolf is Valerius Rufus, one of the Emperor's trusted centurions who's aided by none other than the Emperor's court jester, the diminutive Elpidion. Rebels in league with Valerius kidnap Artamne, planning to exchange her for two of their imprisoned colleagues, but Artamne escapes and soon both Valerius, (now exposed as the Red Wolf), and his fiancee, Lucilla, are sentenced to be immersed in a cauldron of molten lead. Valerius's friends, however, rise up to rescue him and to liberate Rome.
Cosimo de' Bardi is assassinated by a gentleman called the Flemish. Time passes and at some point a masked knight wearing a red cloak enters the scene. He is the son of the killed. These and the Flemish are also rivals in love. In the final duel the Flemish will be eliminated.
The story of an honest young man entangled by a night singer in the Camorra.
Italian naval secret agents acquire a British codebook and the Italian counter-espionage agents start tracking enemy agents working undercover in Italy and providing false information.