Four years ago, beautiful yet troubled Allie Andersen vanished without a trace. The twenty-one-year-old daughter of an acclaimed actress, her disappearance captivated the media, left her family distraught, and became a fixation for online theorists, who implicated everybody Allie knew and loved. Everyone, including her devoted stepsister, Natasha.

Now, Natasha is finally trying to move on. The panic attacks and episodes of hysterical blindness she has suffered since her stepsister's disappearance have diminished, and she no longer obsesses over the speculations of strangers. Until the remains of a young woman's body are discovered in a lonely mountain canyon.