Peter brought home a bat he found that had been transformed into a beautiful woman. The woman's plan was to marry Peter so she could become human again. Peter's wise mother recognized the woman was not sincere and could transform back into a bat. They began living together, but the cruel woman gave the mother dangerous tasks. The mother later met a kind girl, Eleonora, and they developed a friendship. Peter then met Eleonora and fell in love with her kindness. They married and lived happily ever after.