Leslie Howard gives a strong performance as an academic who appears refined but harbors a hidden truth. He arranges a holiday excursion to Germany for his male students, intending for them to investigate the existence of an "Aryan" race. It’s soon revealed that he's also involved in rescuing artists and scientists from the Nazis, led by “General von Graum” (Francis L. Sullivan). As the students become part of this effort, “David” (Hugh McDermott) demonstrates a strong desire to participate, and he finds himself drawn to "Ludmilla" (Mary Morris), who is navigating a precarious situation while attempting to free her father and avoid exposing Howard’s activities—a modern take on Howard's earlier "Scarlet Pimpernel." The script contains some genuinely well-crafted dialogue, particularly from the Nazi propagandists who fervently promote their country as an exemplary place for life and employment. Later in the film, a sense of foreboding develops, culminating in a compelling clash between Howard and Sullivan that makes this one of the more striking World War II suspense films.

Source on TMDB