Doctor Who and the Web of Fear

Forty years the Yeti had been quiet. A collector's item in a museum. Then without warning it awoke — and savagely murdered.

At about the same time patches of mist began to appear in Central London. People who lingered anytime in the mist were found dead, their faces smothered in cobwebs. The cobweb seeped down, penetrating the Underground System. Slowly it spread...