Since their daughter Kate went missing in May 2016, Brian and Barbara Stone have struggled to keep their heads above water. Their marriage is disintegrating, and it seems like Kate's twin Lydia is hiding something from them. With the support of her secret lover, and with the help of a psychic, Lydia begins to unravel the secrets of her mother's life in America, before she moved to London. And what she discovers is darker than she had ever imagined... Could her twin sister's disappearance be somehow linked to a cult that originated in Texas in the seventies? And how are the Stone family connected to this evil and deluded group of people? Time is running ou