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

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.

Mad scientist, doctor Ten Brinken artificially inseminates a prostitute with a dead man's semen. The resulting child grows up to be a beautiful, evil woman who turns against her creator.

In the 1800s, a stormy love relationship develops quickly between a young medical student and a woman believing herself to be the daughter of his scientist uncle, the student having never heard of her before their chance encounter and both unaware that she is the result of the scientist's illegal experiments with artificial insemination..

Four explorers are summoned to Peru by the brilliant physicist Dr Thorkel. They discover a rich source of radium and a half-mad Thorkel who shrinks them down to one-fifth their normal size when they threaten to stop his unorthodox experimentation.