An intelligent pulse of electricity moves from house to thouse, terrorizing occupants through their own appliances. Having already destroyed one household in a quiet neighborhood, the pulse finds itself in the home of a boy and his divorced father.
Some college students manage to persuade the town's big businessman, A. J. Arno, to donate a computer to their college. When the problem- student, Dexter Riley, tries to fix the computer, he gets an electric shock and his brain turns to a computer; now he remembers everything he reads. Unfortunately, he also remembers information which was in the computer's memory, like Arno's illegal businesses..