When Marchioness Lamberico fails to conceive a child, she solicits the help of Imelda, the village witch. Nine months later, she gives birth to a baby girl, Biancabella. Though perfect in every other way, the infant is born with a snake wrapped around her neck. To the relief of the marchioness, the creature vanishes at once and, in the joy of motherhood, is soon forgotten. When Biancabella is a young girl, the snake reappears and explains their uncommon sisterhood. Samaritana helps Biancabella unlock her magical gifts and asserts that so long as they are together, all will be well. Their close, though secret, relationship unites them above all others. Years pass, the sisters contented, until the day King Ferrandino of Naples arrives, seeking Biancabella's hand in marriage. What follows shatters the sisters' bond, leading to misfortune and betrayal, which forces them to grapple with not only the loss of their connection, but leaves each fighting for her life. Loosely based on the Italian fairy tale Biancabella and the Snake, the story explores how love can transform from a domineering and covetous power to authenticity and, ultimately, redemption.