A film is about a Hungarian King who ruled the country more than one thousand years ago. He even nowadays vividly lives in the hearts and minds of Hungarians as the representative of Europeanism justness and clear faith. He was a person, whose human behaviour is an example for everyone even today, who was canonized by the Roman Catholic Church and who has become the hero of a rock opera presented with penetrating success all over the Hungary and whose character is cherished with the warmest love in the hearts of both the young and the older generations.