The Flute Concert of Sans-souci

Major von Lindeneck is reluctant because he doubts his wife Blanche's fidelity. While he remains loyal to the king and carries out his orders, he privately fears that Blanche may be unfaithful while he is away. This personal doubt creates tension between his duty to Frederick and his worries about his marriage.

Frederick uses the flute concerto as a strategic delaying tactic. When the envoys from Austria, Russia, and France request an audience, he performs a flute concerto to buy time while he assesses the situation and awaits critical intelligence. This moment is also a nod to the famous painting by Adolph von Menzel. During the performance, he receives the telegram that reveals the complete conspiracy.

Frederick receives a telegram from Vienna during his flute concerto performance. This telegram completely exposes the plot against him, providing the definitive intelligence he needs. The revelation allows him to move from defensive waiting to decisive action, culminating in the declaration of war.

The Seven Years' War begins when Frederick, after receiving the telegram exposing the full conspiracy, ends his flute concerto and orders the declaration of war to be handed to the envoys. He then steps outside and announces that marching orders have been issued for the Prussian regiments, officially marking the start of the conflict.

After receiving the copy of the secret treaty from von Lindeneck, Frederick consults with his generals, who urge caution. He then develops a counter-plan and sends Lindeneck back to Dresden to execute it. While the specific details of the plan are not fully detailed in the summary, it involves coordinating a response with the court and ultimately leads to the dramatic confrontation with the conspiring envoys.

The film leaves Lindeneck's personal subplot unresolved. While he executes all the king's orders with loyalty and discipline, his private doubts about Blanche's fidelity are never officially addressed or resolved in the narrative. The story focuses primarily on the political events, leaving this personal conflict hanging.

The envoys from Austria, Russia, and France request an audience with King Frederick as part of their diplomatic maneuvering. Presumably, they want to discuss the terms of their secret treaty or perhaps deliver some formal communication. However, Frederick uses this request as an opportunity to stall by performing the flute concerto while waiting for crucial intelligence.

The masked ball at the Dresden Palais, hosted by Saxon Minister Heinrich von Brühl, serves as cover for confidential talks between envoys from Austria, Russia, and France. These envoys are conspiring against Prussia's King Frederick II. Major von Lindeneck sees through the deception and successfully obtains a copy of the secret treaty, which he delivers to the Prussian king.

As the Prussian envoy stationed in Dresden, Major von Lindeneck attends the masked ball and sees through the political ruse. He discerns the true nature of the confidential talks between the foreign envoys and manages to obtain a copy of the concluded secret treaty. He then delivers this crucial evidence to King Frederick, providing the proof needed to respond to the threat.

After learning of the conspiracy from the stolen treaty, Frederick consults with his generals. They urge caution, advising careful action rather than rushing into a response. This reflects the high stakes involved, any premature action could alert the conspirators or provoke a war before Prussia was prepared. Frederick ultimately decides to act strategically rather than rashly.