Mike, after his release from a psychiatric hospital, teams up with his old pal Reggie to hunt down the Tall Man, who is at it again. A mysterious, beautiful girl has also become part of Mike's dreams, and they must find her before the Tall Man does.

In the Los Angeles of the future, police are forbidden to carry weapons and must use stun guns instead. A maverick detective ignores those restrictions in his pursuit of "The Bullseye Murderer," a psychotic rapist who takes a new drug called "Umbra" that gives him superhuman strength and intelligence.