When Chiara, a violinist at the conservatory, is brutally murdered after a performance, inspector Maccari is put on the case. Maccari, whose own wife was once murdered by a serial killer, suspect professor Baraldi, the director of the conservatory. But as more fall prey to the killer, Maccari comes to a shocking conclusion...

One of the key factors in Italian unification was the overthrow in 1860 of Francesco, the King of Naples and the two Sicilies, who went into elegant but impoverished exile in Rome with his Queen, Maria Sofia. This seriocomic drama follows the deposed royals as they adapt to their new lives. The former king has recognized the political finality of his deposition, but his queen has taken to traveling in men's clothing all over Italy trying to foment an uprising to restore them to the throne. She is also frantic to have a baby, an heir, but the king has become celibate as a kind of homage to his beloved mother; he spends all his time lobbying the Vatican to get her declared a saint.