Digging up old acquaintances for an evening's entertainment is a favorite pastime for your THRILLER THEATRE host Margali, so you're certain to enjoy the splendid company you'll find unearthed here, Couch Pumpkin. There are werewolves, mummies and vampires, to be sure -- and a charmingly international cast, from Russian tales that inspired Italian terrors, to a French fright-fable of madness and possession, to proper British chillers that unleash Egyptian curses -- or inspire Japanese monsters! There's even a positively ''ripping'' yarn in the original short story which preceded its later novelization. (We're strictly old-school when it comes to slashers, brave heart.) So if the only good thing on the telly tonight is your cat, just turn down the lights and enter your own private THRILLER THEATRE. It's showtime for those lovely NIGHTMARES THAT LEFT A FILM.