Scanners is a 1981 Canadian sciencefiction horror film written and directed by David Cronenberg and starring Jennifer ONeill, Steven Lack, Michael Ironside, and Patrick McGoohan. In the film, scanners are people with unusual telepathic and telekinetic powers. ConSec, a purveyor of weaponry and security systems searches out scanners to use them for its own purposes. The films plot concerns the attempt by Darryl Revok, a renegade scanner, to wage a war against ConSec. Another scanner, Cameron Vale, is dispatched by ConSec to stop Revok.
ConSec security head Braedon Keller advocates shutting down scanner research, but program head Dr. Paul Ruth disagrees, noting that the assassination and escape have shown the weapons potential they had sought to demonstrate. Ruth attributes the operation to a scanner named Darryl Revok, who Ruth says has his own underground network of scanners in competition with ConSecs program. He argues that ConSec should recruit scanners to their cause to infiltrate and bring down Revoks group.To this point, scanner Cameron Vale has lived an unhappy life as a social outcast, due to his inability to cope with the unceasing stream of other peoples thoughts bombarding his mind and his not even knowing the cause or nature of his condition. After bringing Vale into ConSec, Ruth has administered a drug called ephemerol, which inhibits his scanning ability. Ruth asks for Vales help, explaining that he is a scanner and that Revok is killing all scanners who refuse to join him. ........
Source: Wikipedia