Nell worships her older sister, Layla. They're one unit, intertwined: Nellayla. As Nell and her best friend, Felix, start their freshman year in high school, on Layla's turf, there's so much Nell looks forward to: joining Layla on the varsity soccer team; parties; boys; adventures. But the year takes a very different turn. Layla is changing, withdrawing. She's hiding something, and when Nell discovers what it is, and the consequences it might have, she struggles.