When Ruth Sterling was a teenager, she slipped away one night, desperate to escape an abusive home and a troubling boyfriend. Pregnant, terrified, and prepared to do anything to survive, she eventually makes a life for herself and her daughter, Catherine. But Ruth is always ready to run on a moment's notice. She keeps in touch with no one from her past and never lets anyone get too close to them.
Now, Catherine is graduating from nursing school and planning a life of her own in a new city. But Ruth is frantically trying to keep her daughter by her side. Both women think they know each other, yet each holds deep secrets.
One thing is clear: Danger is coming. But is the true threat arising from Ruth, from Catherine, or from someone on the outside?