The Black Demon

Paul Sturges takes his family on a trip to Mexico to inspect an oil rig his company owns. Once they get out there, he finds the place almost abandoned with only a few terrified workers left who tell him that the rig has been repeatedly attacked by a monstrous shark that is part of a Mexican legend. With the rig sinking into the water and the shark hunting them, he must find a way to get his family to safety and stay alive.