The original Czech musical on the motives of the H. Ch. Andersen story. This is a romantic story from the undersea world and fairy kingdom. From sea waves comes a tender, loving little mermaid to conquer a human heart - the heart of a beautiful prince. Despite warning from her sister and father, who do not trust flirtatious and unsettled humans, she forgoes her voice and mute goes after her love. The prince finds an enchanting friend in the romantic maiden, but immediately after this he headlong falls in love with a beautiful and sensuous princess from southern lands. He forgets about the whole world because of her - including his little mermaid, whose fate is thus sealed. She refuses to destroy her lover, meekly sacrifices herself for his fortune and vanishes in sea foam.