Tatum O’Neal made cinematic history with her staggering performance in the 1973 film Paper Moon. Many remember her as a shy 10-year-old girl—smiling widely and grasping her golden Oscar. But Tatum O’Neal’s story is far more nuanced than her one day of glory. It is a tale both dark and winding, lying outside the spotlight and illuminating an upbringing that no child should ever endure.