Underwater Cave

Dr. Samuel Jamison, a marine biologist at Marineland of the Pacific, is approached by a man named Ernst Steinhauer, who presents him with a rare, unusually large "flame…

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…

Neil and Sherry Grice, a young American couple, are visiting Greece in search of Neil's missing sister, Madeline, an artist who traveled to a remote island off the coast…

Professor Millard Wyman (John Carradine) sends a crew of two men, Paul Whitmore (Allen Windsor) and Craig Randall (Robert Clarke), and two women Lauri Talbott (Sheila…