The Dream by H.G Wells follows the character, Sarnac, who lives a whole other life as Harry Mortimer Smith. Sarnac is at the height of his career as a scientist by discovering new research.
However, he finds that his dreams and the reality he has lived have become so entangled that he is no longer able to distinguish between them. Wells about a man from a Utopian future who dreams the entire life of an Englishman from the Victorian and Edwardian eras, Harry Mortimer Smith.