A famous scientist invents a humanoid robot (the titular "monster"), so a greedy rival scientist plans to steal it for use in his criminal plans. His henchmen often kidnap a trained gorilla (the titular "ape") from the zoo, to aid in the schemes.
The hilarity begins when professor Sherman Klump finds romance with fellow DNA specialist, Denise Gaines, and discovers a brilliant formula that reverses aging. But Sherman's thin and obnoxious alter ego, Buddy Love, wants out...and a big piece of the action. And when Buddy gets loose, things get seriously nutty.
After a wave of reports of mysterious attacks involving people and pets being eaten by the traditionally docile fruit, a special government task force is set up to investigate the violent fruit and put a stop to their murderous spree.
After experimenting on himself and becoming invisible, scientist Jack Griffin, now aggressive due to the drug's effects, seeks a way to reverse the experiment at any cost.
The final installment finds Marty digging the trusty DeLorean out of a mineshaft and looking for Doc in the Wild West of 1885. But when their time machine breaks down, the travelers are stranded in a land of spurs. More problems arise when Doc falls for pretty schoolteacher Clara Clayton, and Marty tangles with Buford Tannen.
In a futuristic city sharply divided between the rich and the poor, the son of the city's mastermind meets a prophet who predicts the coming of a savior to mediate their differences.
Eighties teenager Marty McFly is accidentally sent back in time to 1955, inadvertently disrupting his parents' first meeting and attracting his mother's romantic interest. Marty must repair the damage to history by rekindling his parents' romance and - with the help of his eccentric inventor friend Doc Brown - return to 1985.
Dr. Frankenstein and his monster both turn out to be alive after being attacked by an angry mob. The now-chastened scientist attempts to escape his past, but a former mentor forces him to assist with the creation of a new creature.
A mad scientist, Dr. Aranya (Jackie Coogan), has created giant spiders in his Mexican lab in Zarpa Mesa to create a race of superwomen by injecting spiders with human pituitary growth hormones. Women develop miraculous regenerative powers, but men mutate into disfigured dwarves. Spiders grow to human size and intelligence.
A man struggles with memories of his past, including a wife he cannot remember, in a nightmarish world with no sun and run by beings with telekinetic powers who seek the souls of humans.
Obro the muscleman goes to Atlantis and sinks a death-ray king who knows the secret of immortality.
The Resonator, a powerful machine that can control the sixth sense, has killed its creator and sent his associate into an insane asylum. When a psychiatrist becomes determined to continue the experiment, she unwittingly opens the door to a hostile parallel universe.
Crimes of the Future is set in a future where sexually mature women appear to have been obliterated by a plague produced by the use of cosmetics. The film details the wanderings of Adrian Tripod, director of the dermatological clinic the House of Skin. Tripod seems at a loss following the disappearance of his mentor Antoine Rouge.
A scientist keeps his wife young by killing, stealing the bodies of, and taking the gland fluid from virgin brides.
A medical school dropout loses his fiancée in a tragic lawnmower incident and decides to bring her back to life. Unfortunately, he was only able to save her head, so he goes to the red light district in the city and lures prostitutes into a hotel room so he can collect body parts to reassemble her.
Mad scientist Mehendri Solon is building a body from spare parts to house the disembodied brain of the evil Time Lord Morbius. He fancies the Doctor's head as the final piece...
A remake of the 1927 horror film "The Wizard". Dr. Larry Forbes arrives in a remote French village to visit his fiancée who lives with her scientist father Dr. Renault and his Ape-like manservant Noel. Several Murders coincide with Dr. Forbes arrival, with clues pointing in multiple directions.
Unperturbed by the disastrous outcome of his previous meddling with the dead, Dr. West continues his research into the phenomenon of re-animation; only this time, he plans to create life – starting with the heart of his young protégé Dan's dearly deceased Meg Halsey.
After a comet wipes out most of life on Earth, two Valley Girls find themselves fighting against cannibal zombies and a sinister group of scientists.
A submarine expedition to salvage the remains of Mechagodzilla is thwarted by a massive dinosaur named Titanosaurus. An Interpol investigation leads biologist Ichinose to uncover the work of Dr. Mafune and his mysterious daughter Katsura. Aligned with the Black Hole Aliens, Katsura's life becomes entwined with the resurrected machine.