A philosophical fairy tale based on the themes of Pavel Dobšinský about faith in man, the good in him, which only love can help to win. Princess Jasna also had such faith in goodness and love, which is why she endured with great difficulty the choice of her father - the king who, after the death of the queen, decided to marry Morana, whose only goal was to destroy all good among people, to elevate selfishness over love, avarice over compassion - and slowly succeeded in doing so in the land of Jasna's father. And because Jasienka refuses to live with Morana and behave according to her, Morana bewitches her until there is a groom who can express his love for her without words, guess her name and give her a gift like no other. For a long time there is no one who can do it, until a young man appears in the royal city, whom the brothers mockingly nickname Janko - the key-holder - only because he preferred a simple key from his father as a gift to the golden cluster...