At Cologne, in Germany, two young men work in a perfume factory. One has devised a formula for an Arabian Rose perfume. His false friend steals the formula and some money, leaving the patentee penniless. The two young men consequently come to America. The thief has become a wealthy perfumery merchant. The inventor meets him and there is a quarrel, when the cheated man demands the money that has been made out of the formula. The former friends have married and their children fall in love. But when the parents discover this, there is great unpleasantness. However, in the end, as the children promise to be sweethearts through life, the old friends are reconciled.