"Erin Marinelli has her work cut out for her when she arrives at her late grandmother's Wisconsin home to prepare for an estate sale. But sifting through the overwhelming collection of figurines, outdated appliances and dusty books, she finds something that captures her attention: a yellowed envelope of old photographs. In one, taken almost a century ago, a beautiful woman is seated with a young boy who looks uncannily like Erin's five-year-old autistic...