Survivors of a tragic shipping collision are rescued by a mysterious black ship which appears out of the fog. Little do they realise that the ship is actually a Nazi torture ship which has sailed the seas for years, luring unsuspecting sailors aboard and killing them off one by one.
After discovering a passenger ship missing since 1962 floating adrift on the Bering Sea, salvagers claim the vessel as their own. Once they begin towing the ghost ship towards harbor, a series of bizarre occurrences happen and the group becomes trapped inside the ship, which they soon learn is inhabited by a demonic creature.
The story revolves around the passengers of a yachting trip in the Atlantic Ocean who, when struck by mysterious weather conditions, jump to another ship only to experience greater havoc on the open seas.