A fairy-tale about the power of love. The old king Pravoslav feels it is time to entrust the rule over his kingdom to one of his three daughters - the one that loves him the most. The youngest, Maruška, fails her father's expectations about proving how deep her love him is. He misunderstands her and she is made to leave the castle. She faces many dangers on the way to her loved one, the Salt Prince.
In the dead of night, a few hours after Mozart's death, the usual suspects are summoned to Mozart's room by Count Pergen, head of the secret police, who considered Mozart a potential revolutionary. Over the corpse, he interrogates them, trying to discover the true cause and significance of Mozart's demise.