The plot follows Princess Turandot (Xiaotong), who is cursed by a mysterious power emanating from three Mazovian bracelets that were given to her as birthday gifts. These bracelets' life-draining effects cause the princess to becomes cruel, and gradually she loses her humanity.

Foreign princes who come to court her must solve three riddles -- one for each bracelet -- and only then will she be freed from the power of the bracelets. In the event any of the questions is answered incorrectly, the attempted solver would be put to death. One day, Calaf (Sprouse), an ordinary citizen, risks his life to answer the riddles to save her and inadvertently uncovers his own extraordinary past.