Successful lawyer Jae-wan and principled doctor Jae-gyu are brothers who seem to have it all. Jae-wan has recently welcomed a new child with his second wife, Ji-soo. Jae-gyu's wife, Yeon-kyung, works as a successful translator while also caring for her mother-in-law, who has
dementia. When the two families gather for dinner, they appear to share a close familial bond, but beneath the surface, a subtle tension lingers between them. Jae-wan's daughter from his late first wife, Hye-yoon, and Jae-gyu's son, Si-ho, seem obedient in front of their parents, yet out of sight they indulge in reckless behavior. One evening, while the two families are dining together, Hye-yoon and Si-ho sneak off to drink at a party with friends. Later that night, on their way back, the two assault a homeless man on the street, leaving him severely injured. Yeon-kyung accidentally comes across news footage showing CCTV video of the attack. Shocked to recognize the attackers as Hye-yoon and Si-ho, she considers hiding the truth, but Jae-gyu insists they must turn the children in. Meanwhile, Hye-yoon tells Jae-wan about the incident, pretending it happened to someone she knows. Sensing that she herself is responsible, Jae-wan fears that if the incident becomes public, it will not only tear apart their family but also destroy his career. ==Cast==