The novel, whose success was buoyed by residual interest in Gillian Flynn's breakthrough "Gone Girl" (which shares a similar structure and equal interest in thriller elements and bedroom dramas), was pushed in the summer and became a surprise hit. Harrison was a first-time novelist making her debut with a paperback original (instead of a hardcover); in a tragic twist, the writer succumbed to cancer just months before the book was published. Harrison never got to see what a phenomenon her slender novel would become.
Harrison's estate handled the sale of the book and development of the movie (Kidman is also a producer). "The Silent Wife" concerns a 20-year-marriage that descends into a spiral of lying, cheating, and violence, and is told from alternating points-of-view (first the husband and then his wife). The project, described as a "psychological thriller," doesn't have a director or screenwriter attached, but these elements should line up soon.