Packer's sterling collection of stories is framed by two novellas: "Walk for Mankind" about teenager Richard Appleby and his bittersweet relationship with Sasha Horowitz, a rebellious, risk-taking 14-year-old, who has a clandestine affair with a drug dealer; and, "Things Said or Done" set three decades later, when Sasha, now 51 and divorced, has become Richard's caretaker.