Five tales of terror are presented. The first deals with a demented old man returning from the grave to get the Father's Day cake his murdering daughter never gave him. The second is about a not-too-bright farmer discovering a meteor that turns everything into plant-life. The third is about a vengeful husband burying his wife and her lover up to their necks on the beach. The fourth is about a creature that resides in a crate under the steps of a college. The final story is about an ultra-rich businessman who gets his comeuppance from cockroaches.

For 8 days in 1986, the earth passed through the tail of a mysterious Rea-M rogue comet. During that time, machines on earth suddenly come to life and terrorize their human creators. A small group of people in a truck stop, surrounded by "alive" semi-trailers, set out to stop the machines before the machines stop them.