"Bob" and "Linda" are facing ruin. Their burger restaurant isn't paying it's way and when the bank manager gives them a week to repay their business loan, or lose all their kitchen equipment - things look bleak! Not so bleak as they look the next morning after a great sink hole has appeared outside of their restaurant. Luckily, though, in best "Passport to Pimlico" (1949) tradition, their daughter "Louise" is mucking about near the hole and falls in. Treasure? No, not quite - a skeleton which turns out to be the body of a long lost "Carnie", and a murdered one at that. A quick police investiga...