Two teenage nerds, Gary (Anthony Michael Hall) and Wyatt (Ilan Mitchell-Smith), unpopular and unable to meet girls on their own, use a computer to design the perfect woman. They feed various data (images mostly) into Wyatt's computer. Lacking sufficient processing power, they hack into a US Government mainframe and use its power to create a computer simulation of "the perfect woman" in order to place her in real life sexual situations and see how she reacts. A bizarre electrical storm follows, and they find themselves unable to shut the computer off.