When Carly, a naive, homeschooled fourteen-year-old, is forced to face the treacherous waters of public high school, she turns to her beloved dolls, Lily and Mermia, for comfort and advice. Sprung from Carly's own vivid imagination and taking the form of lifesize "friends," they guide Carly through the ups and downs of growing up, fitting in, and figuring herself (and her sexuality) out.