The cast included Wayne Crawford, Jason Evers, Roberta Leighton, Cliff Emmich, William Kerwin and Bert Freed.

It was directed by Harry Kerwin, with the underwater sequences handled by Wayne Crawford.

A top secret government experiment leads to fatal barracuda attacks on the beaches of a small coastal town formerly renowned for its lobster.

A marine biologist (Wayne Crawford) and sheriff (William Kerwin) uncover a plot involving a mentally unstable former war-medic (Evers) pioneering research into hypoglycemia and its effects on human behavior.

[2] Cavett Binion from Allmovie gave the film a negative review, called it "[a] muddled attempt at ecological horror".