Selma, a factory worker in rural America and single mother, is losing her eyesight from a hereditary disease. Determined to protect her 10-year-old son from the same fate, Selma is saving her money to get him an operation. In the evenings, Selma escapes by rehearsing for a production of The sound of music with her best friend. When a neighbor betrays her trust, Selma's life spirals out of control and the lines between reality and fantasy blur.