Eleonore, Lady of Castle Bretten, has been alienated from her friends and allies by false rumours spread by her nephew, General Lucas von Ruprecht, Count of Zamosc. When Guido, a young Protestant, comes to live at the castle, he wins the love and trust of Lady Eleonore and Felix, the General’s son. With lots of excitement and action Guido and Felix uncover a plot to gain control of the castle.