The Echo Maker

Karin Schluter quits her job to return home to Nebraska and care for her brother Mark, who has fallen into a coma after a mysterious accident. When he emerges, he is convinced that the woman caring for him is an impostor — a rare neurological delusion known as Capgras syndrome. As his sister and a neurologist investigate the truth behind the accident, the novel becomes a meditation on identity, memory, and the fragility of the self.