This isn't a post-apocalyptic wasteland; it is a meticulous, upper-middle-class domestic prison. By stripping away the outside world, Lanthimos creates a vacuum where the "normal" rules of society are replaced by the father’s arbitrary and cruel whims. Language as a Tool of Subjugation
The premise of Dogtooth is deceptively simple and horrifyingly absolute. A father (Christos Stergioglou) and mother (Michelle Valley) keep their three adult children—a son and two daughters—entirely confined within a lush, walled compound. The children have never seen the world beyond their fence, believing that they can only leave once their "dogtooth" (canine tooth) falls out and that the "cat" is the most dangerous predator on earth.
One of the film's most brilliant—and disturbing—elements is its treatment of language. To maintain control, the parents redefine common words to prevent the children from understanding the world they are missing. becomes a leather chair. "Motorway" is a strong wind. "Zombies" are small yellow flowers.