The trio found him before he could shut it off, and he had to run for cover before the explosion. Oscar smells Chuck and notices something unusual, and doesn’t believe her claim that her perfume smells of death. They realize that the methane explosion smelled like rotten eggs, but methane doesn’t have a smell. Only someone who believed the public was dumb enough to think that methane smelled of rotten eggs would have rigged the gas to smell that way. Oscar notes that LeNez’s book sales are guaranteed to rise after the publicity from the murder attempts.
Meanwhile, Ned searches LeNez’s apartment during the interview and reveals what he’s found to Emerson. Emerson and Ned confront LeNez with the evidence: another smelly sock with a warning message. They accuse him of framing Oscar, but he accuses them of planting evidence. He orders them out but traps them in his decontamination chamber. He then pumps in explosive gasses that will explode when sets it off. LeNez reveals that Anita’s death was an accident. He rigged the book to explode but didn’t expect her to secretly sniff it. He then staged the second murder attempt and framed Oscar.
Chuck, Olive, and Oscar arrive and enter the decontamination chamber, and reveal that Oscar reprogrammed the decontamination system. He reverses the airflow, pumping all the odours of the outside world into LeNez’s apartment. LeNez collapses as he is overwhelmed by all the natural scents.
At the aunts’ home, Vivian bursts into song and she and an inspired Lily go to the pool to synchronize swim. Emerson closes the case and enjoys his newly-regained interested in pop-up books. Ned shows Chuck his new menu with cup-pies included. Outside, Oscar lurks in a van and watches Chuck, obsessed with trying to identify her unique odour and smelling her stolen sweater.