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 from the New York Times bestselling author of The Fourth Monkey-master of suspense, J.D. Barker.