In 1908, Sara Harrison Shea was found dead in the field behind her house just months after the tragic death of her daughter, Gertie. Now, in present day, 19-year-old Ruthie lives in Sara's farmhouse with her mother, Alice, and her younger sister, Fawn. Alice has always insisted that they live off the grid, a decision that suddenly proves perilous when Ruthie wakes up one morning to find that Alice has vanished without a trace.