The New Couple in 5B by Lisa Unger is a thriller that imagines prosperity gone awry. Chad and Rosie are struggling to make ends meet living in New York City when they receive what seems to be an amazingly lucky break: Chad’s wealthy uncle has left them his luxury apartment in a glamorous prewar building. But as soon as they move in, they realize that life at the Windermere, for all its “old New York charm”, has some troubling elements. The doorman never seems to leave, there are cameras installed everywhere, and, as Rosie begins to investigate, the building’s history contains a disturbing amount of violent crimes.