Tonight we’re chatting with New York Times bestselling author   J.D. Barker, author of the new thriller Behind a Closed Door. The book has been described as a cross of David Fincher’s The Game and Fifty Shades.  Book Summary: Sugar & Spice is the latest app craze taking the world by storm, but for Abby and Brendan Hollander, downloading it leads to a dangerous game of life and death. When the app assigns them a series of increasingly taboo tasks, they soon find themselves caught up in a twisted web of seduction and violence in this sexually charged dark thriller.The book, published by Simon & Schuster, is released this month and has already been optioned for a motion picture.