Wong continued to work without break, expanding his ideas from "Chungking Express" into another film about alienated young adults in contemporary Hong Kong. "Chungking" had originally been conceived as three stories, but when time ran out Wong developed the third as a new project instead: "Fallen Angels". Although it contained new characters, Wong conceived both films as complementary studies of Hong Kong; he later said, "to me "Chungking Express" and "Fallen Angels" are one film that should be three hours long."