A young man and his big brother drive across country to the latter's new job site. At the end of his first week of work, he returns strangely changed. A bathroom accident kills the older brother by shorting out his pacemaker. The fact that big brother had a perfectly healthy heart leads the younger brother and a police detective, Sgt. Sirolio, to dig further. Sirolio finds that Norco hides a secret. They've been experimenting with a dangerous being of pure energy. This was how the older brother was killed prior to being resurrected with the pacemaker implant. Sirolio and a scientist are nearly killed with the creature escapes. Some quick thinking allows them to draw the thing back into ""the pit"". Safe, for now.