The Forbidden Woman (1927)

Zita, a beautiful spy for the Sultan of Morocco, is ordered to obtain military secrets from the French army. The Sultan cleverly arranges for Zita to meet Col. Pierre Gautier, which results in their marriage. This alliance enables Zita to gain valuable information, which she transmits to the Sultan through her maid. Shortly after the wedding, Pierre is called back to France, and Zita follows. During the voyage, she meets internationally famous violinist Jean La Coste, and they fall desperately in love. Upon her arrival, Zita is shocked to learn that Jean is Pierre's younger brother, and both despair over the situation. Pierre soon finds them together, and orders Jean to Morocco. When Jean spurns Zita, she frames him as a spy, but his confession of love prompts her admission of guilt. The reunited brothers witness her execution.