A scientist invents a serum that keeps a dog's head alive after its body dies. When the scientist dies of a heart attack, his crazed assistant cuts off his head and, using the serum, keeps the doctor's head alive and forces it to help him on an experiment to give his hunchbacked nurse assistant a new body.
A backwoods game warden and a local doctor discover that giant leeches are responsible for disappearances and deaths in a local swamp, but the local police don't believe them.
Trapped on a remote island by a hurricane, a group discover a doctor has been experimenting on creating half sized humans. Unfortunately, his experiments have also created giant shrews, who when they have run out of small animals to eat, turn on the humans.
A small town in Texas finds itself under attack from a hungry, fifty-foot-long gila monster. No longer content to forage in the desert, the giant lizard begins chomping on motorists and train passengers before descending upon the town itself. Only Chase Winstead, a quick-thinking mechanic, can save the town from being wiped out.
Aliens, contacting scientist Adam Penner, inform him that they have been on the moon for twenty thousand years, undetected due to their invisibility, and have now decided to annihilate humanity unless all the nations of earth surrender immediately. Sequestered in an impregnable laboratory trying to find the aliens' weakness, Penner, his daughter, a no-nonsense army major and a squeamish scientist are attacked from outside by the aliens, who have occupied the bodies of the recently deceased.
Frederick Loren invites five strangers to the party of a lifetime and offers each of them $10,000 if they can stay the night in the reportedly haunted house. Armed with a gun for protection, each guest arrives in a hearse and will either leave in it much richer…Or dead.
Teenagers from a small town and their high school science teacher join forces to battle a giant mutant spider, living in a cave nearby and getting hungry.
Newlyweds Eric and Jenni Whitlock retire to his desolate mansion, where Eric's first wife Marianne died from a mysterious freak accident. Jenni, who has a history of mental illness, begins to see strange things including a mysterious skull, which may or may not be a product of her imagination.
The new manager of a small-town cemetery becomes convinced that he triggered the untimely deaths of several plot owners by tampering with a certain map. When nobody believes him, he risks his sanity to play God once again and prove his point.
When Laura and Dan get married, she's more interested in Dan's gorilla. It's revealed through hypnosis that she was Queen of the Gorillas in a previous incarnation.
A small town doctor mistakenly ingests an experimental drug made from the blood of vampire bats which transforms the kindly medic into a bloodthirsty monster.