The drama tells the story of thieves who deal a fatal blow to a few powerful families that secretly manipulate South Korea. Ji Hyun-woo plays the thief Jang Seok-mok, who has both good looks and multiple talents, while Seo Joo-hyun plays the passionate detective Kang Hyo-joo, a character full of justice who will show a decisive and warm side of catching criminals and protecting the vulnerable at all costs.