The film shows what can happen to people and the world, when Norwegian scientists - trying to find a solution to the problem of overpopulation - discover a way to reduce people to only 13 centimeters. They also propose a 200-year program of transforming reality from big to small. People quickly realize how a more comfortable and wealthy life can lead in a miniaturized world. The promise of a better life is also tempting by Paul Safranek (Matt Damon) and his wife Audrey (Kristen Wiig). They both decide to live in a smaller size and smaller world. This decision changes their lives forever.