Oh man, this one was kind of intense.

Jules is down on her luck -- laid off from her job, came home to find her boyfriend cheating on her, and now collecting unemployment while sleeping on a friend's couch. Then she gets an opportunity that seems too good to be true. She finds a job as an apartment sitter that pays her an absurd amount of cash to stay in a luxury apartment overlooking Central Park. So what if there are a lot of intrusive questions about her lack of family or anyone else that might come looking for her? And so they have a weird requirement about sleeping in the apartment every night with no visitors allowed? And what's with the interest in her medical history?

But then Jules starts talking to another apartment sitter in the building, and the next day, the girl disappears. Can Jules find out what really happened to her new friend before she suffers a similar fate? Even if you lock every door, you can't stay hidden when an old Gothic building hides lots of other secrets…

I devoured another Riley Sager book in about a day, and I probably would have done the same with this one if work hadn't gotten in the way.