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.[7]
^Kim Bo-young (September 11, 2024). "'보통의 가족' 10월 9일 개봉 확정…아이들의 살인, 4인의 균열" ['Ordinary Family' confirmed for release on October 9th... Children's murder, cracks in four people] (in Korean). Edaily. Retrieved September 14, 2024 – via Naver.
^Jo Yeon-kyung (August 27, 2024). "해외 도장깨기 '보통의 가족' 韓서도 영화제로 최초 공개" [Overseas stamp-breaking 'Ordinary Family' to be released for the first time at a film festival in Korea]. JTBC (in Korean). Naver. Retrieved August 31, 2024.