The Kellers are devastated to discover that their two-year-old girl is both blind and deaf after a severe illness. Determined to help her live like other children, the Kellers hire Anne Sullivan, a teacher from a school for the blind. Miss Sullivan first has to tame the wild and spoiled Helen, then spend hours working with her, trying to get her to understand her surroundings. Finally, and against all odds, Anne's diligence pays off - and Helen's world suddenly opens up. Helen later writes about this miraculous moment, "My heart began to sing!"