In 2018, Chinese scientist Dr. He Jiankui made history by creating the world's first genome-edited babies, altering the genetic structure of embryos. This experiment, supported by China's government and top U.S. scientists, caused an international uproar and led to his disappearance as well as the twin girls whose genes he had edited. Director Sheehy's thriller uncovers the unknown story behind this controversial event, featuring whistle-blower testimony, never-before-seen interviews with Dr. He, and a glimpse into a future where designer babies are the new norm, and rival governments and corporations compete to create them.