Just prior to World War I, the Kaiser sends Baron von Zeller to inform Emperor Franz Josef of Austria that he is ready to declare war on France. Sensing the impending crisis, the French War Office dispatches secret agent René de Bornay to investigate the situation, and upon his arrival, he cultivates the friendship of Franz Josef's mistress, the Countess Griselda von Arenburg. Austria's Archduke Franz Ferdinand, distressed with the countess' influence over the Emperor, resolves to get rid of her, but she learns of his plans and commissions her Serbian servant Danilo to murder him. Baron von Zeller, who loves the countess, covers up her part in the assassination and asks her to come to Berlin to serve the Kaiser as an agent. In Berlin, she again meets René, and although she has been assigned to expose him, the countess falls in love with the Frenchman and urges him to escape to France. Just as René leaves her apartment, von Zeller enters, and having learned that she hid René from the Germans, has her shot on the spot.—Pamela Short