Parodie des films réalisés autour du mythe de Frankenstein et de sa créature. Le film est divisé, dans la tradition du « serial » (feuilleton) du début du XX siècle, en trois épisodes : Le Laboratoire de l'épouvante, La Proie du maudit et Le monstre avait un cœur.
After the events of The Wolf Man and Ghost of Frankenstein, a duo of graverobbers break into the Talbot family crypt to rob the grave of Larry Talbot (the "Wolf Man" (Lon Chaney, Jr.)), of valuables buried with him, on the night of a full moon. During the grave robbery, the graverobbers remove the Wolfsbane buried with him and he is awakened from death by the full moon shining down on his uncovered body, and kills one of them. Seeking a cure for the curse that causes him to transform into a werewolf with every full moon, Talbot leaves Britain and goes to the remains of Frankenstein's castle, as he hopes to find there the notes of Dr. Ludwig Frankenstein so he might learn how to permanently end his own life through scientific means.
Mexican funnyman, El Clavillazo (Antonio Espino), is in love with a seamstress named Beatriz (Evangelina Elizondo), and also hangs out with a variety of odd characters, including a newsboy and a mental patient. Meanwhile, at the nearby castle, a mad scientist named “Dr Sputnik” and his scarred, hunchbacked assistant are busy making monsters. The doctor poses as a kindly blind man in town and uses hypnosis to lure Beatriz to his castle, brainwashing her into believing that she is his own love named “Galatea”. El Clavillazo, with an assist from his friends, blunders his way into the castle, where he spends most of his time being chased around by various monsters. There is the butler, who looks like the Frankenstein Monster. The rest of the monsters include a werewolf, a mummy, a vampire (clearly modeled after Count Dracula) and a gill-man (clearly patterned after "Creature from the Black Lagoon"). There is also another, unidentified monster being kept in a cell (why it is not allowed to run free with the rest is not known), which is referred to as a “gorilla” in some reviews, although it appears to be more of a humanoid ape-like creature, perhaps based on Dr. Jekyll and Mr. Hyde. In the end, El Clavillazo manages to defeat the monsters, mostly by luck, and rescue the girl. A chemical in Sputnik’s lab devolves the gill-man into a big fish, the werewolf is choked out by the monster in the cell (perhaps that is why he was kept behind bars), Frankenstein accidentally electrocutes himself by grabbing a power cable in the lab and turns into cogs and clock-parts, the mummy falls into a pit of alligators and is devoured, and the vampire vanishes when the sun rises. Dr Sputnik has the usual falling out that all mad scientists seem to eventually have with their deformed assistants (usually due to the scientist mistreating his assistant, or the assistant developing a crush on a girl the scientist has designs on, or sometimes a combination of both), resulting in his being shot after he stabs the scarred hunchback. Clavillazo and Beatriz are trapped in a room and about to be crushed by the walls moving together when they are rescued in the nick of time by the rest of the gang, and they all live happily ever after.
Le baron Victor von Frankenstein a été ruiné par la guerre et les mauvaises manières des nazis à son égard. Pour se refaire une santé financière, il vend ses souvenirs de famille à une chaîne de télévision qui souhaite tourner un documentaire sur les recherches de ses ancêtres, dans le somptueux décor de son château allemand. Grâce aux largesses financières des producteurs, le baron parvient à acquérir un réacteur nucléaire. A l'aide de ce dernier, il parvient à redonner vie à une créature monstrueuse à qui il a transplanté le cerveau de son maître d'hôtel. Mais...
The film centers around the life of Victor Frankenstein. After creating the monster together with his partner Zuckel, the monster attacks the assistant and falls from a cliff. Assuming the monster is dead, Victor returns to his wife Elizabeth and daughter Emily. A police inspector named Bellbeau investigates some mysterious mutilations killings, and Victor is blackmailed by his former assistant, who lost an eye in his fight with the monster.
Castle Frankenstein has been empty for years and the local council is planning to repossess it, when the Frankenstein family return, seeking to find hidden treasure, and to re-animate the Frankenstein monster.
Jay et Mark, deux brillants étudiants en médecine, tombent sur les travaux de leur professeur défunt, Lippzigger, qui travaillait à la réanimation du monstre du baron Frankenstein. Les deux étudiants poursuivent son travail et réussissent à le réanimer. "Frank N. Stein" apprend à vivre comme un être normal, jusqu'à en faire tomber les filles de la fac.
After Alan Jones is savagely beaten by a street gang, he ends up at the lab of mad scientist Dr. Tanner Finski and his assistant Igor, a child genius. There, Jones discovers that he is the key to an experiment that involves Frankenstein's monster. When the experiment goes wrong, Finski sends Jones and Igor back in time to the American Civil War, where an interdimensional portal has allowed an army of monsters to converge.
Pete Dumond, Chief Make-up Artist for 25 years at American International Studios, is fired after the studio is purchased by NBN Associates. The new management from the East, Jeffrey Clayton and John Nixon, plan to make musicals and comedies -- instead of the horror pictures for which Pete has created his remarkable monster make-ups and made the studio famous. In retaliaton, Pete vows to use the very monsters these men have rejected to destroy them. By mixing a numbing ingredient into his foundation cream and persuading the young actors that their careers are through unless they place themselves in his power, he hypnotizes both Larry Drake and Tony Mantell (who are playing the characters Teenage Werewolf and Teenage Frankenstein, respectively, in the picture Werewolf Meets Frankenstein,currently shooting on the lot).
Les femmes ont disparu de la planète Mars à la suite d'une guerre nucléaire. Accompagnée d'un savant, le docteur Nadir, la Princesse Marcuzan se rend sur la Terre en vue de repeupler Mars avec des femmes capturées dans ce but...