AllMovie

This German language suspense film is based on a quite long best-selling novel of the same name by Johannes Mario Simmel and condenses the novel's complex story using flashbacks and rapid movement between locations. When a young man (Alain Noury) goes to Vienna to try to solve the mystery of his industrialist father's assassination, his investigation leads to events that took place in Vienna in 1939. It also infringes on secrets important to all the Allied Force secret services (French, Russian, American and British), so much so that they forget their natural antagonism and join forces to try and stop the young man in his quest for answers.