Claire Bowen, a haunted psychologist, devotes her life to helping troubled women rebuild theirs. But her dream of a family with her new husband, Robert, a pilot and local hero, begins to crumble as disturbing revelations from his past emerge. Detective Joe Tanner, struggling to overcome his wife's death while raising their little girl alone, heads the task force formed to stop the monster who has resurfaced with a chilling message. In the wake of five cold-case murders across Los Angeles, one of Claire's most promising patients vanishes. Gut instinct tells Tanner the truth is within his grasp, while Claire is torn between guilt and terror over what's to come. As time runs out, both are pulled deeper and deeper into an unspeakable darkness.