A 1940 British thriller film in the style of Alfred Hitchcock. Starring Margaret Lockwood and Rex Harrison. Based on the novel Report on a Fugitive by Gordon Wellesley, it is about an inventor and his daughter who are kidnapped by the Gestapo after the Nazis march into Prague in the prelude to the Second World War. A British secret service agent follows them, disguised as a senior German army officer pretending to woo the daughter over to the Nazi cause.