In 2002, two investigators in a private police unit led by the DA receive an anonymous tip about a girl who has been raped and murdered. When they reach the scene, they realize the victim is Jess Cobb's daughter, and the unit is torn apart by grief. Thirteen years later, Ray returns to Los Angeles with a new lead and persuades the DA to reopen the case, only for old secrets and a chilling truth to emerge as the investigation unfolds. Meanwhile, Jess, frustrated with the law, decides to pursue the killer on her own.