There’s an element reminiscent of “Rumpelstiltskin” at play here, except instead of transforming straw into gold, the story involves turning sugar into diamonds! "Dennison" (Dennis O'Keefe) finds himself pursuing thieves who have made off with a substantial amount of US treasury bonds and are planning to meet with counterfeit jewelers in London. Upon his arrival, he joins forces with "Insp. McClaren" (Philip Friend).…