Martian Frontier City X-58. Photo-studio owner Go Jeong-sik leads a double life as a fixer who works in the dark. His secret: the knot on top of his head. Untie it, and his face slides down over his eyes. He can't see a thing, yet in the dark he becomes the fastest man alive. The price: a face that looks twenty years older. Which is why no one knows who he really is. And in episode one, famous singer Yoon Sori walks in with a blackmail tape.