After receiving fertile eggs from a donor, Rebecca and Caleb are finally able to have a child and start a family. Several years later, a strange woman appears in their life, and is oddly drawn to their daughter. The egg donor has returned–and she wants what is “rightfully” hers.

While on a road trip through the desert, Charlie and her boyfriend Aidan's car breaks down in the middle of nowhere. Heading to a nearby town, Charlie suddenly finds herself on her own when her boyfriend goes missing.