The film is based on a true yet unsolved murder case from the early 1990s that is known among Koreans as the "disappearance of the frog children." In 1991, five elementary school students told their parents that they were going to hang out on a nearby mountain to catch frogs. They never came back.
In 1950, in South Korea, shoe-shiner Jin-tae Lee and his 18-year-old old student brother, Jin-seok Lee, form a poor but happy family with their mother, Jin-tae's fiancé Young-shin Kim, and her young sisters.
A detective infiltrates into one of the biggest gang organizations in the country and gets involved in a fight for the heir to the gang after the boss dies and in between the second in charge who trusts him with his life and the high police officials who think of him only as bait.
For Nick (Jason Bateman), Kurt (Jason Sudeikis) and Dale (Charlie Day), the only thing that would make the daily grind more tolerable would be to grind their intolerable bosses (Kevin Spacey, Colin Farrell, Jennifer Aniston) into dust.
The movie is centered on a couple, Nader and Simin, and their 11-year-old daughter, Termeh. Nader and Simin are about to leave the country for good; however, Nader has a change of heart and decides to stay and look after his father who suffers from Alzheimer's disease.