Based on true events. Summer 1939, Thomas Miller (Eddie Izzard) has taken a last minute and controversial role teaching English to the daughters of high-ranking Nazis at the Augusta-Victoria College, Bexhill-on-Sea, a finishing school on the south coast of England. Despite the storm clouds forming across Europe, the girls continue to learn deportment, Shakespeare, fitness and how to be a faithful member of Hitler’s League of German Girls.

Under the watchful eye of their headmistress Miss Rocholl (Judi Dench), and her devout assistant Ilse Keller (Carla Juri), the girls practice their English and learn how to represent the ideal of German womanhood. With a new world war imminent and a fog of resentment surrounding their presence, youth’s summer is running out for the girls...for everyone.

When the body of a former teacher is discovered, it triggers a sequence of deadly events where the girls and Miss Rocholl discover a world where loyalty is more important than truth. It also leaves Thomas running from the police with the threat of being hanged for murder.

Can Thomas exonerate himself in time? And can he save the hearts and minds of his students from the grip of Hitler?