Carnage plays out entirely in a New York City apartment, where
two couples are trying to deal with a playground incident involving
their 11-year-old sons, one of whom struck the other in the mouth with a
stick. In the process, the film—directed and coscripted by Roman
Polanski, based on Yasmina Reza's play God of Carnage—peels back the skin of each supposedly caring parent, revealing the person beneath the civilized facade.