Essie can tell from the moment she lays eyes on Harriet Abbott: this is a woman who has taken a wrong turn in life. Why else would an educated, well-dressed, clearly upper-crust girl end up in the Triangle Shirtwaist Factory setting sleeves for six dollars a day? As the unlikely friendship between Essie and Harriet grows, so does the weight of the question hanging between them: Who is lost? And who will be found?