Once a legendary star on the professional racing circuit, Hyun Damhwa loses his memories in a catastrophic crash during the British Grand Prix and is forced to return to South Korea. While attempting to piece his life back together, he stays in touch with Lee Yugang, a former fellow racer. As their conversations continue, Damhwa gradually develops a deep sense of admiration and romantic feelings for him.

One day, while taking photos at a racetrack, Damhwa unexpectedly runs into Yugang. Shocked by the encounter, Damhwa suddenly collapses on the spot, prompting Yugang to take him back to his private hotel room.

When Damhwa opens his eyes, he finds himself trapped in a hazy, overwhelming nightmare as Yugang ruthlessly claims his body. Unable to tell whether he is trapped in a feverish dream or reality, Damhwa trembles under the weight of Yugang's cold, mocking murmur: "You're a completely new person now, Hyun Damhwa. Except down here.