A schlocky science-fiction tale about a college professor, Franz, who is involved in the study of a prehistoric fish that was discovered in Madagascar. A dragonfly bites the fish and becomes a "huge" menace; a dog comes in contact with the fish and is turned into a wolf. Then some of the
fish slime makes its way into Franz's pipe; he smokes it and turns into a Neanderthal man. The prehistoric Franz goes on a rampage through the campus, swinging a murderous axe.