Perfect Dark is set in the year 2023 against the backdrop of an interstellar war between two races: the Maians, who resemble the stereotypical "greys" of alien abduction folklore, and the Skedar, reptile-like extraterrestrials who can disguise themselves as humans, bearing similarities to Nordic aliens. On Earth, there is an on-going rivalry between two factions. The Carrington Institute, founded by Daniel Carrington, is officially an R&D centre but secretly operates an espionage group in league with the Maians. dataDyne, on the other hand, is a sinister defense contractor with a clandestine link to the Skedar. The player is cast as Joanna Dark, an agent of the Carrington Institute, whose impeccable scores in training have earned her the codename "Perfect Dark".