When the designer with three models and the captain of the boat disappears without a trace on the beautiful beaches of the small Puerto Rican island of Palomino, only the designer's camera is found. The last picture shows the attacker of a five-headed monster-shark. It calls a group of biologists from the local aquarium according to plan, who wants to capture the mutation of the shark as possible as possible to make them a tourist attraction of the aquarium. But the bloodthirsty thirst of a monster is immeasurable and requires one victim after another.
