One winter's afternoon on Hampstead Heath in 1980, Elise Morceau meets Constance Holden and quickly falls under her spell. Connie is bold and alluring, a successful writer whose novel is being turned into a major Hollywood film. Elise follows Connie to LA, a city of strange dreams and swimming pools and late-night gatherings of glamorous people. But whilst Connie thrives on the heat and electricity of this new world where everyone is reaching for the stars and no one is telling the truth, Elise finds herself floundering. When she overhears a conversation at a party that turns everything on its head, Elise makes an impulsive decision that will change her life forever.

Three decades later, Rose Simmons is seeking answers about her mother, who disappeared when she was a baby. Having learned that the last person to see her was Constance Holden, a reclusive novelist who withdrew from public life at the peak of her fame, Rose is drawn to the door of Connie's imposing house in search of a confession . . .