Series 4 (1968)

Following her father's death, young heiress Maud is sent to live with her mysterious Uncle Silas. She finds her new guardian living in a gothic nightmare of a mansion, and soon realises that he plots to murder her and claim her inheritance.

A brilliant but egotistical scientist brings a creature to life in a monstrous experiment that ultimately leads to the undoing of both the creator and his tragic creation.

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.