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, … Kent Taylor, Cathy Downs, Michael Whalen, Rodney Bell, Phillip Pine, Vivi Janiss, Helene Stanton Added on Amazon Prime 2023-03-25. Youtube Trailer