Dennis Lenehan is a class act. A high diver, turned pro in 79, who's fetched up at the Tishomingo Lodge & Casino near the Mighty Mississippi, diving from an eighty-foot-high platform into a tank with just nine feet of water. All to entertain the guests. Except that Dennis just loves his job. Too bad then that his pleasure is spoiled when one day he witnesses a killing from his position high up in the sky. Pretty soon Dennis is deep in trouble as some cool dudes from up north attempt to muscle in on the local Dixie Mafia - moonshiners, bootleggers, truck-hijackers and amphetamine manufacturers - and decide that Dennis has just what it takes to run a racket.