Cesare Zocchi

Robinet is jealous, with comedic results.

A Prince is suffering from winter doldrums; his palace alchemist gives him some magical doodads to ease his distress.

Well-respected Pompeiian Glaucus performs an act of kindness by purchasing Nydia, a blind slave being mistreated by her owner. Nydia falls in love with her new master, but he only has eyes for Ione. Ione in turn is lusted after by Arbace, an Egyptian high priest of Isis. When Nydia beseeches Isis for help in capturing Glaucus' heart, Arbace gives her a "love" potion-- an elixir made to drive Glaucus mad, securing Ione for himself. Ultimately, Mount Vesuvius will end their lives and seal their fates in a terrible, glorious eruption.

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.