Behind the scenes of the perfume industry, discovering the complex combinations of scientific know-how and creative flair that go into making and marketing the world's most popular brands. Famed Parisian firm Guerlain searches for a new perfumier-in-chief - and for the first time, the famous brand is recruiting from outside the family. In New York, Estee Lauder executives devise a new mass-market fragrance for fashion designer Tommy Hilfiger, and search for the perfect way to give their product an edge in the crowded marketplace.