Strange alien creatures resembling clowns arrive in a small town, wreaking havoc and causing mass panic among the residents. The story begins when a young couple, Mike and Debbie, discover a circus tent-like spaceship on the outskirts of town. They quickly realize that these extraterrestrial clowns are capturing and killing people using bizarre, carnival-themed weapons. The clowns encase their victims in cotton candy cocoons and use various whimsical yet deadly gadgets. Mike and Debbie rush to inform the local authorities, but their claims are initially dismissed as a prank.

Determined to stop the alien invasion, Mike and Debbie enlist the help of Debbie's ex-boyfriend, Dave, who is now a police officer. As the strange occurrences increase, more people in the town come into contact with the deadly clowns, causing widespread fear and confusion. Despite their initial disbelief, the remaining police force and a few brave townspeople join forces to combat the extraterrestrial menace. They must find a way to fight back against these frighteningly absurd aliens before the entire town falls victim to the deadly clowns from outer space.