A train in a futuristic landscape takes passengers to a place where they can recapture their memories, a place from which no one has ever returned. This is the premise of a novel by the womanizing sci-fi writer Chow (Tony Leung Chiu Wai), who engages in passionate affairs with a series of intriguing women he meets at the Oriental Hotel in Hong Kong. As Chow's lovers offer him inspiration for his writing, reality blends with fiction, and the past commingles with the future.