Various lives converge on an isolated island, all connected by an author whose novel has become inextricably entwined with his own life. Lucía is a young waitress in a restaurant in the centre of Madrid. After the loss of her long-time boyfriend, a writer, she seeks refuge on a quiet, secluded Mediterranean island. There, bathed in an atmosphere of fresh air and dazzling sun, Lucía begins to discover the dark corners of her past relationship, as if they were forbidden passages of a novel which the author now, from afar, allows her to read.