The theme, characteristic, is guilt and the Fall of Man. The four main characters are Miriam, a beautiful painter who is compared to Eve, Beatrice Cenci, Lady Macbeth, Judith, and Cleopatra, and is being pursued by a mysterious, threatening Model; Hilda, an innocent copyist who is compared to the Virgin Mary; Kenyon, a sculptor, who represents rationalist humanism; and Donatello, the Count of Monti Beni, who is compared to Adam, resembles the Faun of Praxiteles, and is probably only half human.