Saul and Patsy by Charles Baxter (2003) HCDJ

Saul and Patsy, both from the East Coast, meet in college, fall in love, and settle down to married life in the Midwest. There the lives of children - their own and others' - begin to invade their own lives. One of Saul's students, a deeply troubled sixteen-year-old boy, has become obsessed with Saul's life. And although Saul can't see it coming, the outcome of the boy's obsession will lead Saul to question everything he has always assumed about himself, his community, and his marriage. In a climax populated by demons looking for scapegoats, Saul and Patsy must finally confront a community of lost souls who have arrived on their doorstep, demanding entry.