After Parker -a hopeless romantic who smokes too much for his own good- leaves Daisy -a troubled alcoholic with a haunting past- with a kiss on the cheek and no explanation as to why he just shattered her entire world, she sits down with pen and paper and begins to write a series of unsent letters to him. Weaving in stories from her past, memories of their relationship, and tales of her life post break-up, their relationship is retold.