Relates the story of Molly Fancher, a young woman from Brooklyn, New York who suffered from multiple personality disorder in the 19th century. Also called somnambulism, she spent nine years in a trance and the last fifty one years of her life in bed.
Multiple personality is a condition which is classified today as a form of hysterical neurosis of the dissociative type. Disorders in this group are differentiated in part by the presence of peculiarities in the realm of memory function and include unusual states such as fugue, somnambulism, and amnesia.
One such case was Mollie Fancher who came to be known as the "Brooklyn Enigma" or "The Psychological Marvel of the Nineteenth Century."