Shin Young Joo 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 often speaks harshly, but inside she has a golden heart. Lee Dong Joon is a righteous elite judge, brilliant in mind, but with a warm heart and he always has 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.