A laboratory accident endows a police scientist with the ability to move at superhuman speed which he uses to battle a menacing gang as a superhero.
Practical Effects
That rubber muscle suit is unhinged cinema history.
Acting
John Wesley Shipp commits harder than the script deserves.

Director
Robert Iscove
Trivia, insights & behind the scenes
John Wesley Shipp later played Henry Allen on the CW Flash series, completing a 25-year circle. The 1990 suit reportedly weighed 40 pounds and took 25 minutes to put on.
This was DC's first serious live-action superhero film attempt since the 80s Superman collapse, and its TV-pilot-turned-movie fate killed Flash on screen for two decades.