Jeweler DuBois (Emile Genest) short-changes Captain McCabe (John Ireland) by selling a 5,000-dollar black pearl for a huge profit, returning a pittance to McCabe and pocketing the rest. Then Hubert Wilkens (Ernest Truex), the man who bought the pearl, demands to buy its match. Now DuBois must deal again with McCabe, who isn't about to be cheated twice. ~ Hal Erickson, Rovi