In a tributary of the Amazon, a monster – half-man, half-fish – is captured and placed in a reservoir in a Florida national park to be observed by scientists.
Doctor Frankenstein creates a mate for his monster, a woman called Eva, who promptly rejects the male creature. In turn, the doctor becomes obsessed with Eva, and tries to make her a perfect Victorian woman.
A high priest of Karnak travels to America with the living mummy Kharis (Lon Chaney Jr.) to kill all those who had desecrated the tomb of the Egyptian princess Ananka thirty years earlier.
After being buried in quicksand for the past 25 years, Kharis is set free to roam the rural bayous of Louisiana, as is the soul of his beloved Princess Ananka, still housed in the body of Amina Mansouri, who seeks help and protection at a swamp draining project.
An Egyptian high priest travels to America to reclaim the bodies of ancient Egyptian princess Ananka and her living guardian mummy Kharis. Learning that Ananka's spirit has been reincarnated into another body, he kidnaps a young woman of Egyptian descent with a mysterious resemblance to the princess. However, the high priest's greedy desires cause him to lose control of the mummy...
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.
A man suffers from the curse of lycanthrope and seeks help from doctor and wife team. They both turn out to be vampires and end up dueling it out with the werewolf star.
Stranded in Egypt, Bud and Lou find themselves in the buried tomb of a living mummy.
Romanticized adaptation of Bram Stoker's 1897 classic. Count Dracula is a subject of fatal attraction to more than one English maiden lady, as he seeks an immortal bride.
As novice detectives, Bud and Lou come face to face with the Invisible Man.
Famed monster slayer Gabriel Van Helsing is dispatched to Transylvania to assist the last of the Valerious bloodline in defeating Count Dracula. Anna Valerious reveals that Dracula has formed an unholy alliance with Dr. Frankenstein's monster and is hell-bent on exacting a centuries-old curse on her family.
Lawrence Talbot, an American man on a visit to Victorian London to make amends with his estranged father, gets bitten by a werewolf and, after a moonlight transformation, leaves him with a savage hunger for flesh.
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.
An ancient Egyptian priest named Imhotep is revived when a British archaeological expedition finds his mummy and one of the researchers accidentally reads an ancient life-giving spell. Imhotep escapes from the field site and searches for the reincarnation of the soul of his lover.
Following a tragic accident that leaves him disfigured, crazed composer Erique Claudin transformed into a masked phantom who schemes to make beautiful young soprano Christine Dubois the star of the opera and wreak revenge on those who stole his music.
A countess from Transylvania seeks a psychiatrist’s help to cure her vampiric cravings.
The owner of a coal mining operation, falsely imprisoned for fratricide, takes a drug to make him invisible, despite its side effect: gradual madness.
Kitty Carroll, an attractive store model, volunteers to become a test subject for a machine that will make her invisible so that she can use her invisibility to exact revenge on her ex-boss.
A fugitive, dangerous madman reaches an English village where he confronts his former partner who left him for dead in the jungle after their discovery of a diamond mine. When the former partner also claims to have since lost the mine and all its wealth, which he took all for himself, and though the partner is still living in a state of luxury , the madman takes up an offer from a crazed scientist to make him invisible, something the scientist has already done with experimental animals, so that he can take revenge.
The Invisible Man's grandson uses his secret formula to spy on Nazi Germany.