Two writers and their girlfriends visit the castle of an actor who specializes in playing vampire roles. As the night progresses, they begin to wonder if the man is an actor playing a vampire, or a vampire playing an actor.

Scientist Doctor Who accidentally activates his new invention, the Tardis, a time machine disguised as a police telephone box. Doctor Who, his two grand-daughters, and Barbara's boyfriend Ian are transported through time and space to the planet Skaro, where a peaceful race of Thals are under threat of nuclear attack from the planet's other inhabitants: the robotic mutant Daleks.

Mysterious and unearthly deaths start to occur while Professor Saxton is transporting the frozen remains of a primitive humanoid creature he found in Manchuria back to Europe.