In "The Haunting," a group of insomniac volunteer research subjects travel to a massive old mansion to undergo testing for what they believe to be insomnia studies. What they do not know is that the professor in charge is actually conducting experiments on human fear. As the days and nights pass, the group slowly begins to learn the terrifying secret behind the house's former owner. They soon realize that the house is pure evil, and they must battle a terrifying spirit to escape the house of nightmares.
A newlywed couple sit in a train. The husband receives a frantic telegram. He gets off at a station to make a phone call, the train pulls away without him on it, and that's the last his wife sees of him. Years later after a long search she finally tracks him down on his family's southern estate where she discovers that a failed medical treatment has turned him into an alligator mutant.
Janice Starlin, the owner of a cosmetics firm, sees that her fading beauty is not only causing waves in her personal life but causing some prestige problems for her also-fading business. She becomes an easy mark for a pseudo-scientist, Eric Zinthrop, who claims to have developed a serum from the enzymes of wasps that will turn aging skin to youthful-looking skin. The second-best thing to a time machine. She, without any hesitation, agrees to be the first human to try the Zinthro injections. But, as her beauty returns, her secretary, Mary Dennison, and her advertising executive, Bill Lane, notices she is also having a personality change and it isn't for the better, albeit she was no Miss Congegeniality to begin with. Then, Zinthrop gets hit by an automobile, for plot-development purposes, and is somewhat incapacitated and not in any shape to be whipping up any new batches of Zinthrop's Wasp Enzyme Injection Serum and, without her enzyme injections, Janice turns into a wasp-like woman and meaner that a yellow-jacket hornet. Several people don't live to regret coming into contact with her, and this is not good for the business, either.
Trying to escape their dead-end life in the desert town of Perfection, Nevada, Valentine "Val" McKee and Earl Bassett find themselves sidetracked when corpses mysteriously start piling up around them. When Val and Earl have a run-in with some creepy tentacled creatures that have made lunch out of a road crew, they retreat back to the town to spread the news. Although these monsters are not exactly intellectuals, their mental powers are still mind-boggling. Detecting a human hiding in a car, they dig under the vehicle, causing it to sink into the earth. Val and Earl get help from several townspeople. With the help of Rhonda, Val and Earl kill one of the monsters. But there are three of them left, and they are each about 30 feet long. Walter starts calling the monsters graboids. When the survivors think they have outwitted the graboids by taking refuge atop the roofs of buildings, the graboids merely destroy the buildings' foundations, killing two people. The graboids are quick learners when it comes to stalking their prey, and the humans must continually be on their toes if they are to stay alive while they try to find a way to defeat the graboids.
The human race is wiped out by a government invented super flu. The remaining survivors take sides in the forces of good and evil. A mysterious old woman who is a servant of God and a powerful and deadly man who might be the devil himself. A gas station attendant, a rock star, a mute, a professor, a farmer, a socialite, a mildly retarded man, a judge, a teenager, a mother, and a nerd take forces.