Stars Anne Kimbell, Stuart Wade, Dick Pinner and Jack Hayes. Produced by Roger Corman. Early Corman monster flick. Scientist exploring along the coast of Mexico happen onto a primitive people and the monster that lives off their shore. Looks like a rockin' one week (or less!) production from the king of 50's monster movies, Roger Corman. Lots of extras: featurette, interview, trailers, booklet, commentary by Tom Weaver, and much more!