A teenage girl suffers from a panic attack while taking a standardized test.

In just sixty years, South Korea went from being one of the poorest countries on the Asian continent to having the 12th largest economy in the entire world. Every year, it is measured that Korean students have some of the highest test scores and a higher rate of acceptance into Ivy League schools compared to all other nations. But on the flip side, South Korea also has one of the highest suicide rates in the developed world, the highest gender pay gap of all developed countries, and the highest plastic surgery rate per capita. Always expected to receive top scores and constantly bombarded by media and messages that seem to demand nothing short of visual “perfection,” how do these individuals come to accept and learn to love themselves as they are?

Two cutting-edge scientists give 'birth' to a Neanderthal—the first to walk the earth for some 35,000 years—in order to attempt to answer these questions. Part 'normal' child, part science experiment, William’s 'parents' struggle with the best way to raise him. As William grows toward adulthood, he is educated in the human experiences of love and intimacy. But his primitive impulses begin to emerge the more he tries to conform to human expectations, leading to tragic consequences for him and his loved ones.