Mary Hobbes is a woman of Caucasian ancestry, age 38, single, from Lowell, Massachusetts. She had one brother, Peter, who was a few years older than she. Her highest level of education was eighth grade and she has never been employed. This stems from an incident that happened in the 1930's when she was 14. On Christmas night, Mary received a china doll as a gift from her parents; her brother had received a large knife. After their parents went to sleep, Peter hid in his and Mary's room with the intent to scare her. Peter was successful in scaring Mary, ultimately causing her to fall forward onto her doll, with the sharp edges inflicting deep cuts around her chest and neck. Her immediate, unthinking reaction was to take Peter's knife and cut him up in return. When her parents heard the commotion, they too came running in, ultimately perishing at the hands of their daughter. Found mentally unfit to stand trial, Mary was committed into a mental institution to seek treatment for this seemingly unexplainable violent burst. While there, doctors realized she held within her three distinct alternate personalities: Billy, a young boy, Princess, a little girl, and Simon, monstrous and almost demon-like. In her unaltered state of mind, Mary maintains the injuries she received that night were caused from falling off a bicycle. Her alters, of whom she is unaware exist, corroborate the story of the china doll and the violence that ensued. She shifts frequently between Mary, Billy and Princess, but doctors have a difficult time getting Billy or Princess to discuss Simon. All have a tendency to become upset when discussing Christmas night in Lowell, except Simon, who almost takes pride in “participating.” The doctors concluded that she had the three alters within her ever since childhood and never knew that anything was wrong with her. But when the perfect combination of her predisposition to her DID and the stress she encountered was enough to awake simon (her repressed inner evil) from his sleep.