Nick Payne’s ingenious, time-traveling adventure weaves together three personal quests to get to the heart of the mind— a wannabe research pioneer absconds with Einstein’s brain; a newlywed fights to hang onto the memory of his love after a botched operation; and, a freshly divorced neuroscientist struggles to find hope in the face of cold hard facts. “Incognito” asks the question, “What makes us us?”