When Mike and his girlfriend Debbie warn the local police that a gang of homicidal alien-clowns have landed in the nearby area (in a spaceship shaped like a circus big-top, no less), the cops are naturally skeptical. Before long, however, reports are coming in from other anxious residents detailing similar run-ins with the large-shoed assailants. There can no longer be any doubt – the Killer Klowns from Outer Space are here, and they’re out to turn the Earth’s population into candy floss!