Rebecca Aldrich has a history of disappearing. But this time is different. The spirited college freshman simply vanishes, like several other young women from Las Vegas, New Mexico's Highlands University. When her stepmother, Jamie Aldrich, embarks on a desperate hunt for her missing stepdaughter, she discovers that the surrounding grasslands and foothills of the Sangre de Cristo Mountains are full of secrets, and that her recently deceased husband left behind a life enshrouded in mystery.