David Cronenberg goes mental in this story of some very special people. the Scanners are folks with extraordinary mental powers that can debilitate people by the very act of thinking about it. Cameron Vale, a vagrant, is picked up by ComSec after an impromptu display of his powers and is set off to infiltrate the scanner community, his target? Daryl Revok, an extremely powerful scanner who seems bent on being the most powerful man alive. However as Vale investigates he finds that all is not quite what it seems.