Catherine Sterling thinks she knows her mother. Ruth Sterling is quiet hardworking and lives for her daughter. All her life it's been just the two of them against the world. But now Catherine is ready to spread her wings move from home and begin a new career. And Ruth Sterling will do anything to prevent that from happening. Ruth Sterling thinks she knows her daughter. Catherine would never rebel or question anything about her mother's past. But soon Ruth's desperate quest to keep her daughter by her side reveals cracks in Ruth's carefully constructed world. No one can know Ruth's history. There is a reason why Ruth kept them moving every few years and why she was ready - in a moment's notice - to be gone in the night. But danger is closing in. Is it coming from the outside from Ruth's past? Is Ruth reaching a breaking point? Or is the danger coming from the darkness that may live in Catherine herself?