Lucy McKay, a high school English teacher from Mississippi, is estranged from her divorced parents. Her father, Pratt McKay, is a professor of history at UNC-Chapel Hill, and her mother a professor of art history at Duke. Pratt, who is ill with multiple sclerosis, invites Lucy to spend her summer vacation with him at his second home, which is in an expensive gated community 250 miles west of Chapel Hill in the Great Smoky Mountains. The visit begins with difficulty for Lucy, who is 35, also divorced, and unhappy. She and her father have trouble talking about his progressing illness. Within the gated community, Lucy begins to make friends with some older residents, but her life changes when she meets a landscape contractor named Sean Crayton, who is working on properties in the neighborhood. Shortly after she arrives, Pratt reveals a shocking fact about his own years in college. Told in a double-journal form by Lucy and her father, this is a story of love's cost and necessity.