Millie Dunbrook-a young and unproven private investigator badly in need of steady work-has been hired to perform some exploration into a few strange yet minor incidents aboard a Caribbean cruise liner. Jack Hauser-a man still stinging from the recent departure of his wife and daughter-is simply another passenger trying to enjoy a relaxing cruise while searching for some personal answers in hope of finding new meaning to his life. Two other passengers have a completely different agenda, however. Neither Millie nor Jack, in their wildest dreams or nightmares, ever expected this cruise to be the ultimate target of an improbable plot, devised to completely destroy the boat and everyone aboard if the ransom demands aren't met. What results is an amazing nautical game of terror as the ship and passengers sail unknowingly toward an approaching death.