In Paris, haute couturier Sébastien Fel is totally blocked about designs for his new collection until he sees Rachel Bowman, a plump, pretty Ohio teacher who has never worn anything from a designer in her life. He claims her as a muse for his Renaissance Woman high fashion clothing, celebrating the beauty of, um, larger women. Everyone is skeptical, including Rachel, but she reluctantly agrees, mostly to enjoy Paris for another few months rather than teaching French to bored high schoolers. Along the way, she wears scrumptious clothes and meets Sebastien's ex, a delightful British mystery writer, and many new friends, including some intriguing men. And she comes to a realization that, she, like a fellow model tells her, is not fat. She's plus, in more ways than one.