Freelance journalist Katie returns to New York after a year of unsuccessful book research in Michigan. Back in the city, she accepts an invitation from her adopted older sister, Hana, a publicist, into a high-powered social network of Harvard alums including waspy, elegant Eleanor, founder of the Herd, an exclusive workspace and club for women. While Katie waits for her Herd membership application to be processed, she pitches a biography/oral history...