The Phantom From 10000 Leagues W/S

When it's discovered that a murdered fisherman was exposed to unusual amounts of radiation, Dr. Ted Stevens decides to investigate. Out looking for clues, he meets Lois, whose father, Professor King, runs a local marine biology lab. The King's secret experiments with atomic energy have resulted in the creation of a murderous aquatic beast, and he must act fast to prevent more needless deaths.

Genres Horror, Science Fiction, Suspense Director Dan Milner Starring Kent Taylor, Cathy Downs, Michael Whalen