Jae-wan is a successful lawyer who is hired to defend a wealthy executive's son who intentionally killed a man and severely injured the man's daughter. Jae-wan's younger brother, Jae-gyu, is a principled paediatrician who prioritizes his patients' health over personal gain and profit. The brothers and their wives meet monthly and enjoy luxurious meals at high-end restaurants, but when they learn of a violent crime committed by their teenagers, it challenges their moral values and changes the tone of their usual dinner discussions. As the situation escalates, their seemingly close brotherly bond starts to fade.