Liesl Smith is like any other high school girl. She loves shopping and hanging out with girls. Since she is like all the other high school girls, then she must have a crush. Darren Sawyer, everbody's dream boy. He's popular with all the girls, in short, he's a heartthrob. But his not like your typical heartthrobs. He's good-looking and popular but he still remains humble and modest. Liesl, one of his admirers, writes him letters everyday but doesn't send them. But they somehow fall in to the hands of Darren. How will he feel after he reads these "Unsent letters"?