" A variant of the amnesic-plot device is the inadvertent return of the amnesiac to home territory, where he is welcomed by a lovely woman, unknown to him, who is evidently his wife. The crucial scene is his being led off to bed. A non-amnesic equivalent is a twin or look-alike who is mistaken for someone else—by a beautiful woman. Invariably she finds him not merely oddly different but somehow better, more attractive, than the original. After a love scene, she looks at him wide-eyed and smiling (you were never like this before!). This version demonstrates that the source of pleasure for the moviegoer is not the amnesia but the certified and risk-free license to leave the old self behind and enter upon a new life, whether by amnesia or mistaken identity. "

― Walker Percy , Lost in the Cosmos: The Last Self-Help Book