The edge-of-your-seat thriller focuses on two best friends and neighbours whose perfect lives in �60s suburbia are shattered by a tragic accident involving one of their children. The story follows Alice (Chastain) and C�line (Hathaway) as their sisterly bond is gradually undermined by guilt and paranoia and a gripping battle of wills develops, revealing the darker side of maternal love. Marking the directorial debut of acclaimed cinematographer Beno�t Delhomme (The Theory of Everything, A Most Wanted Man), the film also stars Anders Danielsen Lie (The Worst Person in the World) and Josh Charles (The Good Wife) and is based on the book Mothers� Instinct: A Novel of Suspense by Barbara Abel.