Üvegvár a Mississippin (1987)

Young archaeologist giving a doll to his ex-girlfriend, in which he has hidden valuable rare antique coins. As she lives in Austria, unknowingly carries the contraband across the border, but the doll breaks and the coins soon pop up on the black market. The archaeologist wants the coins back on any costs, because of their childhood promise with the ex, as they going to live together in a Glass-castle on the Mississippi.