This film is very like The Luck of the Irish in that an Irish American returns to Ireland to do business, but ends up falling in love instead. Bing Crosby and Barry Fitzgerald star as the Irish American and the local police officer, respectively. Crosby played Irish so frequently that he's been mistaken for Irish. Fitzgerald was so Irish he couldn't play anything else. (According to Hollywood, anyway.) Crosby played Irish priests so often that he actually converted to Catholicism. (See Going My Way and The Bells of St. Mary's) The premise here is that the Irish are superstitious. When the Blarney Stone goes missing every bad or even odd thing that happens in the vicinity is attributed to the stone's curse. First they fret about it; then they console themselves with a tune. The Irish are not as superstitious as they once were, but they still have a penchant for bursting into song.