"She's your best friend. She knows all your secrets. That's why she's so dangerous. A single mother's life is turned upside down when her best friend vanishes, in this chilling debut thriller in the vein of Gone Girl and The Girl on the Train"-- "A debut psychological thriller--in the vein of GONE GIRL or GIRL ON A TRAIN--that focuses on a mommy blogger, her best friend who disappears suddenly, and the latter's husband--with betrayals and reversals, a dead body, and the ever-revolving question of who is duping whom"-- Provided by publisher. Provided by publisher.