A seven-year-old girl witnesses the murder of her mother and sisters, and testifies that her teenage brother was the killer, leading to his imprisonment. As an adult, she attends a gathering of true-crime fans, and discovers they all think her brother was innocent. She reluctantly agrees to revisit the crime, and begins to realise her memories may not be as reliable as she thought. Mystery, starring Charlize Theron, Nicholas Hoult, Christina Hendricks and Chloe Grace Moretz.