Hailey Sinclair awakened to a loud bump in the late-night hours. She had recently relocated to a rundown, low-income apartment complex, one with cheap, thin walls between the units. The paper-thin barrier provided little sound insulation to keep the neighbors’ marital discord a secret. But this time it was only one thud and then everything was deadly quiet. Too quiet. Unnerved to no end, her heart fluttered, warning her that something terrible had just happened. What was that noise? Was it nothing? Or was it the worst thing imaginable? And what would happen to Hailey if her next-door neighbor discovered she’d heard all too much of his affairs?