The Devil of the Sea [El Diablo del Mar]

A ship disappears without trace. What happened to the crew? Years later there's news of possible survivors and soon a rescue team is setting sail. Eventually they discover a young man living on a remote island and they ask him to leave with them. He refuses, so they abduct him. But he gets his revenge and guides them into the lair of the devil of the deep. Alternate language version of THE SEA FIEND (1935)