Shin Young Joo (Lee Bo Young) is a female detective, a section chief with charisma, although she spends most of her time with petty criminals. She has to pay the debt of her family and speaks often harshly, but inside she has a golden heart. Meanwhile, Lee Dong Joon (Lee Sang Yoon) is a righteous elite judge, brilliant in mind, but with a warm heart and he has always a friendly ear for those, who are weak. Both work together to solve a case of corruption, involving the greatest law firm of the nation, Taebak, which turns out to be one of the biggest scandals ever.