Exiling himself from the cinematic world he despises, volatile actor Klaus Kinski seeks ultimate isolation as the keeper of the remote Blackwater Reef Lighthouse, a monolithic, 19th-century granite tower perched above the most treacherous trench in the Atlantic Ocean. But he is not alone. Three miles out and three miles down, the voice of an ancient, slumbering leviathan rises from the depths with telepathic resonance.