From the author of Are You Sleeping—soon to be an Apple TV series—comes a cautionary tale of oversharing in the social media age for fans of Jessica Knoll and Caroline Kepnes's You. Everyone wants new followers...until they follow you home. Audrey Miller has an enviable new job at the Smithsonian, a body by reformer Pilates, an apartment door with a broken lock, and hundreds of thousands of Instagram followers to bear witness to it all. Having just moved to Washington, DC, Audrey busies herself impressing her new boss, interacting with her online fan base, and staving off a creepy upstairs neighbor with the help of the only two people she knows in town: an ex-boyfriend she can't stay away from and a sorority sister with a high-powered job and a mysterious past. But Audrey's faulty door may be the least of her security concerns. Unbeknownst to her, her move has brought her within striking distance of someone who's...