The Abominable Snowman of the Himalayas. Bigfoot of the Pacific Northwest. Few claim to have seen these links to our primitive past. But when a wild half-man/half-ape emerges from his countryside cave,TV cameras are there to observe the event – and the terror! People call him Trog,short for a prehistoric cave dweller called a troglodyte. To an anthropologist (Joan Crawford in her final film),he’s the scientific discovery of the age. To others,he’s walking death. A grocer is impaled on a meat hook,a car is tossed aside like a twig,a child is kidnapped – all after local resident Sam Murdock (Michael Gough) prods the brute into a blind rampage. In true horror tradition,the world’s Murdocks leave no doubt who the real savages are – and who is the part-man,part-monster,all Trog!