The film presents a biopunk vision of a future society driven by liberal eugenics where potential children are selected through preimplantation genetic diagnosis to ensure they possess the best hereditary traits of their parents. A genetic registry database uses biometrics to instantly identify and classify those so created as "valids" while those conceived by traditional means are derisively known as "in-valids". While genetic discrimination is forbidden by law, in practice it is easy to profile a person's genotype resulting in the valids qualifying for professional employment while the in-valids"?considered more susceptible to disease, educational dysfunction and shorter lifespans"?are relegated to menial jobs.