Tiny dead ghostlike Martian creatures are raining down on earth and cause chaos and destruction. Only scientist and "authority on the occult" Don Blant may help by contacting the ghost of his dead brother Allen. The latter tells him that the Martians shy away from human blood.
In a Welsh coal mine a horde of undead druids is set free in an underground explosion. Greedy mine owner Wesleyn promises them a deal of sacrifices, but gets trapped in a cave-in and has to pose as the ritual sacrifice himself.
A sweet old man runs a horror carousel with twisted creatures for rides. Two adult brothers smell foul play. The creatures look like deceased people they used to know. When one brother is killed by a monstrous fiend, the other starts investigating. Retracing the steps of vanished corpses he discovers the hideous truth: The old man is a vampire transforming his victims into rides on his horror-go-round.