Young Frances and Elsie believe in fairies. The photographs the girls take of the winged beings put them at the center of a real-life controvery that sweeps through a recovering World War I England during 1917. Everyone is caught up in the excitement, including two of the era's most renowned men: Sir Arthur Conan Doyle and master illusionist Harry Houdini. But are the photographs real or just a cleaver hoax?