The lovely young Sylvie de Valen, maid of honor to Queen Anne of Austria, has many powerful enemies, including Cardinal Richelieu himself. After all, she keeps an important state secret - the father of the future king of France is not Louis XIII at all, but the young irresistible and dissolute Duke de Beaufort. This secret is especially painful for Sylvie, her heart has long been given to the brave but flighty Duke, it beats only in order to someday hear three magic words from her lover: “I love you...”