No one knows her real name; in the tunnels, they only call her Kim. It’s the name men whisper when they talk about the last train. They say if you take the Red Line after midnight and stay alone in the last car, if you are worthy, she appears. Kim is no ordinary woman; she is a forbidden encounter that lasts only three stations. She seeks the adrenaline of a secret, frenetic moment, feeding on the desires that others hide, before vanishing into the shadows of the tunnel upon reaching the final destination.