When Joan Frances Casey "awoke" on the ledge of a building ready to jump, she did not know how she had gotten there. And it wasn't the first time she had blanked out. She decided to give therapy another try. And after a few sessions, Lynn Wilson, an experienced psychiatric social worker, was shocked to discover that Joan had MPD--Multiple Personality Disorder. And as she came to know Joan's distinct selves, Lynn uncovered a nightmarish pattern of emotional and physical abuse, including rape and incest, that nearly succeeded in smothering the artistic and intellectual gifts of this amazing young woman.