Cora has always moved through the world like a child in a fine art museum, afraid to touch. There are safe ways to touch her surroundings—her elbow jamming down a doorknob, the sole of her shoe on a toilet lever, her house key poking an elevator button. But Cora hates touching New York with her bare hands, because it is a city that sweats in the summer and oozes pizza grease from its pores and vomits sodden trash bags onto sidewalks.