From the New York Times bestselling author of The Guest List comes a new locked room mystery, set in a Paris apartment building in which every resident has something to hide Jess needs a fresh start. She s broke and alone, and she s just left her job under less than ideal circumstances. Her half-brother Ben didn t sound thrilled when she asked if she could crash with him for a bit, but he didn t say no, and surely everything will look better from Paris. Only when she shows up to find a very nice apartment, could Ben really have afforded this? he s not there. The longer Ben stays missing, the more Jess starts to dig into her brother s situation, and the more questions she has. Ben s neighbors are an eclectic bunch, and not particularly friendly. Jess may have come to Paris to escape her past, but it s starting to look like it s Ben s future that's in question. The socialite-- The nice guy-- The alcoholic-- The girl on the verge-- The concierge. Everyone's a neighbor. Everyone's a suspect. And everyone knows something they re not telling.