Music, whether a Debussy tude or Gram Parsons's "Hickory Wind," has been a constant in Ruby Gervais's life. After Ruby helps fuel a paranoid fervor that spreads like wildfire throughout her rural Montana community, her home life deteriorates. As a sixteen-year-old high school dropout busing tables at the local bar two nights a week, her prospects are uncertain. So when, after her shift one night, the Idaho Rivermen invite her to join their band and...