The Family Upstairs" by Lisa Jewell follows Libby Jones, who learns she is the sole inheritor of a London mansion and the adopted child of its former residents, according to Amazon.com. The story reveals the family's dark past, including a suicide pact and the disappearance of three other children, as Libby and her estranged siblings, Lucy and Henry, are drawn together by the events of the past and the secrets surrounding their family home.