Sem Benelli

In Florence, at the time of Lorenzo de Medici, known also as Lorenzo the Magnificent, the aristocrat brothers Chiaramantesi rule with an iron fist the streets of the city. Ruthless and fierce, the two brothers have chosen as their special victim the innocent and harmless Giannetto. Even though determined to not react to the cruel pranks of the brothers, Giannetto is forced to take a stand when Ginevra, a beautiful girl that works in the Chiaramantesi household, is dragged into the game. To defend his honor and protect the girl, Giannetto works out a fiendish plot that will end in blood and madness.

Monna Violante, wed by her father to the rich merchant Floridoro, falls in love with Spallatonda, the buffoon of count Giano, one her suitors.

1017 AD. The Republic of Pisa is organizing a fleet to drive out the Saracens who are infesting the Mediterranean. While the forces are away "The Gorgon," the young daughter of a Pisan nobleman who has been heroically killed, comes to be solemnly invested as the figurehead virgin who will maintain a lantern to celebrate the men's victorious return. In charge of the home guard is an ambitious young Florentine who feels deprived of the forthcoming honour and glory, and who seeks revenge by violating the sacred person of the virgin. He gains access to her well guarded quarters, but when the Gorgon falls helplessly in love with him, his desire for vengeance falls away. His plot exposed, he commits suicide rather than invoke the wrath of the Pisans. The Gorgon too takes her life by throwing herself from a high tower. Meanwhile, the victorious Pisan vessels return.

Pisa, 11th century. Spina, a young priestess daughter of Peter, is devoted to keeping a flame burning that illuminates the way back for those returning from the Crusade. But the Florentine knight Lamberto falls in love with her and the two young men fail in the vow of chastity that Spina committed. The shame for having betrayed the promise of purity made pushes Spina to suicide and Lamberto kills himself with her.