This drama depicts the intense and fierce fight among three greedy individuals, in order to become the owner of most splendid light sources for the city that never sleeps: money and power. Seo Yi Kyung is a ruthless and sharp businesswoman, who is willing to do anything for her ambitions. Park Gun Woo is an heir to a big company who got betrayed by his love, Yi Kyung, 12 years ago. Lee Se Jin is a hired persona who gets attracted to Yi Kyung's aura and wants to be like her.