Deep Sea Shark

Franklin (Samuel L. Jackson), the owner of the biochemical pharmaceutical factory, provides a large amount of funds for Dr. Susan McAlester (Saffron Burrows) to research anti-Alzheimer's drugs. Susan and her research team extracted proteins from shark brains and injected them into necrotic human brain cells in a well-equipped underwater research center. In order to extract more shark brain proteins, Susan also increased the brain capacity of the sharks. This move made the sharks who were originally used as experimental subjects stronger and smarter. Shark expert Carter (Thomas Jane) discovered something strange about the sharks while living day and night with the sharks, and warned Susan, but Susan ignored her. Finally, in the last experiment, those ferocious sharks that had become human experimental subjects took revenge on humans...