A marine biologist and a government agent investigate mysterious deaths and rumors of a sea monster in a secluded ocean cove, and find themselves involved with a marine biology professor conducting secretive experiments, international spies trying to steal his secrets, a radioactive light on the sea bottom, and the malevolent thing which guards it.
Dr. Ted Stevens, alias Ted Baxter
Lois King
Prof. King
William S. 'Bill' Grant
George Thomas
Ethel Hall
Wanda
Andy, the Janitor
Sheriff
The Phantom
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