 Traumatized, orphaned college dropout Magnus Dens returns to Bermuda to find the cause of his father s mysterious death years before. At the Bermuda Biological Station, he finds Eric and Dr. Paulis, friends and colleagues of his late father, and joins them on a quest for gigantic sea creatures. He also meets Jennie Haniver, a mysterious young woman who was once his only childhood friend. Paulis  housekeeper, an island local, warns Magnus that Jennie is dangerous. The beautiful but vain young woman had made a pact with the Devil centuries before and lives forever young deep in the waters of the Devil s Triangle (a.k.a. Bermuda Triangle). Nobody heeds the folklore and the researchers trap the giant sea turtle, setting the stage for a deadly confrontation with both minions of the Devil.