Isabelle doesn't understand what the big deal is. She just throws up from time to time, especially after she's eaten a lot of food -- an awful lot of food. But this is the only way she can cope with her annoying little sister, and her depressed mother, and the memory of her Dad who died two years ago. And from a distance, Ashley seems like the most perfect person in the world, until Isabelle gets to know her better. And until Ashley shows up at Group.
Pretty much a by-the-numbers story of eating disorders, with the requisite kids who don't succeed to counterpose against the heroine who (of course) starts on the road to recovery. It's satisfying, albeit more than a little predictable.