A disheveled man in a suit (Ritch) wanders uncertainly down the main street of the small, rural town of Mountaincrest on a winter's night. Looking out of place and…
In the Salton Sea, an underwater earthquake causes a crevice to open, releasing prehistoric giant mollusks. A rescue training parachute jump is conducted, but the patrol…
A severely deformed man stumbles through the Arizona desert, falls, and dies. Dr. Matt Hastings, a doctor from the nearby town of Desert Rock, Arizona, is called in by…
Author and amateur astronomer John Putnam (Richard Carlson) and schoolteacher Ellen Fields (Barbara Rush) watch a large meteorite crash near the small town of Sand Rock,…
In the Florida Everglades, a pair of larger-than-human, intelligent leeches live in an underwater cave. They begin dragging locals down to their cave, where they slowly…
After a year of marriage, Marge Farrell (Gloria Talbott) is despondent that her husband Bill (Tom Tryon) is cold and not acting toward her the way he did before they…
The movie opens with a young couple, Pat Wheeler (Grady Vaughn) and Liz Humphries (Yolanda Salas), parked in a bleak, rural locale overlooking a ravine. A giant Gila…