When scientists discover how to shrink humans to five inches tall as a solution to over-population, Paul (Damon) and his wife Audrey (Kristen Wiig) decide to abandon their stressed lives in order to get small and move to a new downsized community — a choice that triggers life-changing adventures. Damon, superb as the bewildered everyman, is supported by an appropriately florid Christoph Waltz and a captivating Hong Chau, playing an illegal immigrant who arrives in a parcel.