Professor Flutesnoot invites Wendy Wistful -- a leading expert on aromatherapy, and an old crush of the Professor's-- to help him teach a class on the effects of aromatherapy. Suddenly, a butterfly is doused in a powerful pheromone and sprinkles the potion over the class, causing all the couples to spontaneously change partners.; Beamount says to give the aromatherapy time and it will wear off naturally. So, at the dance, Professor Flutesnoot breaks Wendy out of the spell by complimenting her. Archie then briefly shorts the lights at the dance, and when they come back on, the potion's effects have worn off. Everyone is back to normal, except Reggie and Ethel, who find they really like each other.; Concerned with the love-drugged class, Professor Flutesnoot breaks Archie out of his narcissistic spell. Then, the two of them go to see the only man who might help them: Beaumont.; Sam Squatch narrates a story of how not to catch a Bigfoot when Mr. Lodge and Mr. Weatherbee come after him.