 Utilizing an analogy of the "tête-bêche" (head-to-tail) arrangement of postal stamps in philately, it is composed of two interconnected stories, one about an old man, and another about a young girl.The novel inspired Wong Kar-wai's 2000 film "In the Mood for Love".Following the release of the film, a symposium was held in Hong Kong for Liu's works and "Intersection" was published as a separate book.