A marine biologist, a dolphin trainer, a research scientist, and a local sheriff try to hunt down a large sea monster, a shark/octopus hybrid, that is devouring swimmers and fishermen off a south Florida coast.

Michael Sopkiwas Peter
Valentine Monnieras Dr. Stella Dickens
Gianni Garkoas Sheriff Gordon
William Bergeras Professor Donald West
Iris Peynadoas Sandra Hayes
Cinzia de Pontias Florinda
Paulo Brancoas Miller
Dagmar Lassanderas Sonja West
Giancarlo Ferrando