Does six-year-old Amy Reed (Ann Carter) suffer from the same mysterious delusions that her mother had – delusions that she can transform into a cat? Her father (Kent Smith) does everything in his power to protect Amy from the strange "curse" but sees her slipping deeper and deeper into her self-made world of fantasy. Then the fantasies turn into something terrifying when little Amy conjures up a beautiful imaginary friend – her long-dead mother (Simone Simon). Is the mother truly imaginary, or is she real? And if she's real, why has she returned to her daughter's world?