The young and powerful king of the European country of Constantinia finds his bride in a small American town, Princess Santa Domini, to whom he was betrothed as a child, but who has been presumed dead in a car accident for twenty years. The girl suffers from amnesia and ekes out a more than modest existence, working as a waitress. Under the guidance of the king's courtiers, she again becomes who she was by birthright. Moreover, she falls in love with her savior. It would seem that marriage and family happiness with the king is just around the corner... But why is the king so cold towards her and what plans does he really pursue?