Cassie goes off to college, for the first time, fearful of going and of her ability to be good enough for her demanding father and slides into anorexia. Billie, left behind finds herself becoming stronger even as Cassie weakens. She stands up to her father and starts thinking about her future on her terms not her father. Cassie was always the strong sassy one and Billie always the quiet cooperative one. What happens to change these two sisters, how and why is explored in this touching story. The girls remain close throughout and while there is hope for both girls the story ends without a certain final outcome.