An unhealthy friendship takes a sinister turn in this psychological suspense novel perfect for fans of Gillian Flynn's Gone Girl. Martha and Jennie live next door to each other in a small suburban neighborhood. Martha is everything Jennie isn't--attractive, outgoing, and popular, with a handsome husband and perfect children. So Jennie is honored when Martha befriends her, even if--behind Jennie's back--Martha can barely tolerate the clingy and friendless Jennie.