Molly Sweeney, a blind woman, undergoes eye surgery at the insistence of her husband and steps into the world of the sighted. Initially, she is very excited, but after a while, she begins to suffer from an illness; her brain fails to process the visual information, and despite having perfect vision, she is completely blind.
After this event, Molly becomes deeply depressed and ill. Having lived for forty years in the world of blindness, she is afraid of leaving that world. Once she recovers, she fully realizes that she has lost the beautiful world of blindness that was uniquely hers.