Based on a bestseller by Jaws author Peter Benchley, this aquatic nerve-shredder offers more trouble-in-the-water thrills. Jacqueline Bisset and Nick Nolte are a couple on a scuba-diving vacation in Bermuda who happen upon a most curious treasure: hundreds of vials of morphine from a shipwrecked World War II craft. It’s a discovery that plunges them into a historical mystery and makes them the targets of a local drug kingpin (Louis Gossett Jr.) with a penchant for voodoo. Bonuses: Robert Shaw and Eli Wallach costar; there’s a drag-out fight involving a dangerously spinning outboard motor blade; and the underwater cinematography is simply stunning, at once eerily beautiful and charged with menace.