Short Summary: The Family Upstairs by Lisa Jewell is a gripping psychological thriller that revolves around the intertwined lives of three characters— Libby Jones , Henry , and Lucy —whose fates are linked by a mysterious and chilling family history. When Libby, the sole survivor of a harrowing incident in a posh London home, turns 25, she inherits the property and uncovers a disturbing past involving her biological family. As she delves deeper into the history of the house, she discovers the tragic events that occurred there—an entire family dead, and two children mysteriously vanished. The story shifts between multiple perspectives, revealing the hidden secrets of the upstairs family , the dark past , and the survival of its children . Each character must come to terms with their connection to the house, confront their own haunting pasts, and ultimately uncover the truth of what happened. Through intricate layers of deception, manipulation, and family secrets, The Family Upstairs ...