screaming monster chasing people in caves

A gold thief and his gang use a skier's lodge and meet a monster covered with cobwebs.

When a group of isolated people in the Greek mountains set off a cave explosion, they are menaced by an invisible shrieking dinosaur that had been buried for eons

Near a remote town, the repeated dumping of toxic waste causes an underground cave dweller to mutate into a hideous monster. A construction team that is digging a tunnel accidentally disturb the creature's habitat causing it to attack.

After years of underground atomic testing, one of the animals living within the Wisawa caves (a system that stretches from Phantom Lake to the Deadlands) has undergone a radical and unimaginably horrible transformation! While exploring the caves, Dr. Vincent Edwards and colleague Rosemary Bennett stumble across evidence in the disappearance of local children. After reporting the find to the local sheriff, Dr. Edwards and Rosemary are tapped to lead a rescue attempt. Along with the sheriff and small-town farmer Stan Johnson (the children's father), the rescue party quickly comes to the realization that if the caves don't get them, whatever unseen terror lurking in the shadows just might!

An encounter of monsters.

A team of Cryptozoologists on a weekend trip, find themselves being hunted by an enormous creature that stalks the northern dark woods.

Two friends hide in an old theater to escape ravenous hordes of vampires, zombies and werewolves.