Lucía is a young waitress in 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, dazzling sun, and glistening deep blue water, Lucía begins to discover the dark corners of her past relationship. It is as if she is reading forbidden passages of a novel, which the author only now, from afar, allows her to read.