A British estate agent travels to Transylvania to meet the mysterious Count Dracula, who is interested in leasing a London castle. After Dracula enslaves the agent and drives him to insanity, the pair return to London together, where Dracula, a secret bloodsucker, begins preying on socialites.

Henry Frankenstein pieces together body parts in the hope of bringing a human-like creature to life. The mad scientist’s dreams are shattered by his monstrous creation awakening with rage to a world that hates and fears him.

Scientists assembled to prove their methods are effective in criminal investigation try to solve a series of murders.

A countess from Transylvania seeks a psychiatrist’s help to cure her vampiric cravings.

A crime writer believes that a man imprisoned for committing the notorious "Flower Shop Murder" is innocent of the crime. He believes he knows who the actual culprit is, and sets out to befriend the man and get enough evidence to prove that he is the real killer.

Dr. John Garth conducting an innovative medical experiment aimed at prolonging life and combating aging. The experiment takes an unexpected turn, placing the doctor in a confrontation with the ethics of his work and the consequences of his research.

The wife of attorney John Blair (T. Jerome Lawler), heroine Helene (Kalich) finds herself in an untenable position when two of Blair's clients, Harry Carson (Robert Rendel)) and Richard Tremaine (Eugene Ormonde), both fall in love with her.

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.

A mad scientist attempts to rule the world by creating various elaborate inventions.

A man - trapped in a cistern - reflects on the dark events that lead to his lonely entrapment. Told in flashback, we witness his chance encounter with a nefarious lawyer who persuades him to impersonate a wealthy man who went missing 7 years ago.