A middle-aged woman named Deborah, who has been in a comatose state for thirty years as a result of contracting "sleepy sickness," encephalitis lethargica, awakes with a mind still that of a sixteen-year-old. She must confront a body which seems to have aged without her prior knowledge or consent. Her sister Pauline and Pauline's husband, Hornby, who has been Deborah's devoted doctor over these three decades and who may have fallen in love with her, attempt gently to ease her back to her current reality, while withholding some of the more jarring information.