Tell On You, the story of a married teacher's fatal infatuation with his beautiful 16-year-old student, best fits into the emerging niche genre of "Grip Lit." These novels, usually authored by women and inspired by the wildly successful Gone Girl, are thrillers with psychological nuances and frequently unreliable narrators. Readers love the must-turn-the-page suspense, even while they may dislike the characters. The author of Tell On You is a psychologist, well-acquainted with the dark corners of the heart.