Faith Saunders is the perfect wife, mother, and community champion - loved and admired by all who know her. One night will change everything. As she drives home in the pouring rain, a dishevelled young woman appears out of nowhere, pleading for help. The isolated stretch of road is dark, and with her daughter Maggie asleep in the backseat, Faith refuses to let the stranger in. What she sees next will haunt her forever.