Twenty-five years after testifying against her brother as the person responsible for massacring their family, a haunted woman named Libby Day (Charlize Theron) decides to reinvestigate the case when she is approached by a secret society of amateur criminologists. Nicholas Hoult, Corey Stoll, Christina Hendricks, and Chlo? Grace Moretz co-star in this thriller directed by Gilles Paquet-Brenner. Based on the novel by Gillian Flynn (Gone Girl).