Cabaret singer by night, spy by day, Richard risks his life to help British servicemen escape occupied France and get back to England.
Rose leads a group of dancers with mixed morals high-kicking to entertain the troops as Hitler's bombers roar in the skies above. Then she is given orders to join the forces in the field, destination unknown.
Meanwhile a phantom pianist, who has lost the love of his life, is following Montys soldiers across the African desert, mocking the enemies guns by playing Beethoven between the lines.