A German scientist murders his fiancée during World War II when he learns that she has been selling the results of his secret research to the enemy.

• Arnold Pressburger Filmproduktion
• Peter Lorre
• Karl John
• Helmuth Rudolph
• Johanna Hofer
• Renate Mannhardt
• Eva Ingeborg Scholz
• Peter Ahrweiler
• Gisela Trowe