Xiao Weiming (played by Chen Shancong) came to the dilapidated and mixed-class Jinxiao Building as a watchman, and met Alex (played by Li Shihua), a flight attendant resident here, whose appearance was exactly the same as the cheongsam woman who had been haunting him in his dreams! Xiao approached Alex and learned more about their connection. During this time, strange things happened in Jinxiao Building, and the lives and fantasy stories of other residents were constantly being played out; Xiao even discovered that Alex was actually an afterimage! COCO (played by Li Shihua), a dancer at the Jinxiao Ballroom in the 1960s, dreamed that she would become a flight attendant in the future and fell in love with Liu Xuhui (played by Chen Shancong), a policeman who looked the same as the man in her dream. The strange dream was also written into a novel by the bookstore owner Lin Ruosi (played by Zhang Yanbo). Xiao traced it all the way and accidentally found this old novel. He was shocked to learn that he and Alex had a complicated past life relationship...