I really, really loved this book. The Family Upstairs is about a young woman who inherits a house with a dark past. As she uncovers the history of the house and its former residents, secrets and mysteries begin to surface. Soon they connect her life to a series of unsettling events. It was everything I like my thriller mystery books to be. Lisa Jewell is one of my favorite authors and this is one of the best books by her I've read. The creepiness and twists of this book are unmatched by anything else I have read. This was the first book I've read that included cults and I have continued to pick out books with this theme. I was so upset when I lost my copy of this because I would reread this book in a heartbeat. It was just so amazing and I definitely recommend it!