Cha-wang, an unscrupulous lawyer, defends the most brutal murderers without a single shred of remorse, while his brother, Cha-gyu, a doctor, considers himself a decent and kind person. One day, a video emerges that shows two teenagers beating a homeless man to a pulp, and Cha-wang recognizes his daughter and nephew as the attackers. The victim is unconscious, and the police have no leads, leaving the heads of two families to face a true test of their conscience.