DA Monique Lamont has a special job for Massachusetts state investigator Win Garano. As part of a new public relations campaign about the dangers of declining neighborhoods, Lamont is sending Win to Watertown to come up with a “drama,” and she thinks she knows just the case that will serve. Garano is skeptical because he knows that Watertown is also the home base for a loose association of municipal police departments called the FRONT, set up so they aren't dependent on the state—much to Lamont's anger. Win senses a much deeper agenda—but has no idea just how deep it goes. In the days that follow, he'll find Lamont's task. and the places it leads him, will resemble a house of mirrors—everywhere he turns, he's not quite sure if what he's seeing is true.