Cio-Cio-San, the young Japanese bride of American naval officer Lieutenant Pinkerton, finds her romantic idyll shattered when he deserts her shortly after their marriage. She lives in hope that one day he will return.

Rusalka, a water spirit, lives with her family in the pure waters of the forest lake. When she falls in love with a Prince, she sacrifices her voice and leaves her home in the hope of finding true love in a new world – a world that does not love her back.