It's quickly apparent to Sam and Ben that although their hosts are aristocrats living in a magnificent castle, money is always in short supply. Castles aren't exactly cheap things to run and it's clear that their uncle Philipp, the Baron who owns the pile, is under severe financial stress. Things aren't helped by the arrival of a new local bank manager, who Philipp knows he must impress if he is to secure a much needed loan, nor by the news that a fraudster is on the prowl and is likely to be targeting the castle's small but valuable collection of relics. It doesn't take long for things to begin to unravel as a case of mistaken identity causes Philipp to wish he'd not bothered to get out of bed that morning.