In a future society in the era of indefinite eugenics, humans are set on a life course depending on their DNA. Young Vincent Freeman is born with a condition that would prevent him from space travel, yet is determined to infiltrate the GATTACA space program.
Martin Blank is a hitman for hire. When he starts to develop a conscience, he botches a couple of routine jobs. On the advice of his secretary and his psychiatrist, he decides to attend his ten-year high school reunion in Grosse Pointe, Michigan.