The CEO of Clayton Software, Faye Clayton, lays off her development team after their latest game project, called "Evilution", receives numerous disastrous test previews, and begins her search for a new team. During this search, she selected a team of renowned game designers, Bug, Hardcore, Sol, led by Peter Drummond as replacements. At the same time, they are informed that a bonus of a million dollars would be awarded to those who make the game the most scariest, through innovation means. Desipte their rivalry among them, they work together to make the game scary enough to scare the kids in four weeks. Just as Sol adds his powerful AI chip into the hard drive, the lightning strike causes a power surge which brings "Evilution" to life. The programmers are soon confined in the building, becoming targets of their killer game they've created and the virtual nightmare begins...