Kramer declares that hair mousse has changed his life, and wears his hair styled for the entire episode. Elaine invites everyone to brunch and to watch the New York City Marathon at her friend's apartment.
Building managers Harold and Manny inform Jerry that Mrs. Hudwalker, upstairs from him, has died. Since Elaine is looking for an apartment, they invite her to move in for just $400 per month. Jerry melodramatically keeps Elaine in suspense before breaking the news, stunning her. Elaine is elated that she will be able to visit any time, and Jerry realizes too late that he does not want this, and that all his comings and goings—including bringing dates home—will be in earshot of Elaine.
Jerry catches George at Monk's to kick himself over his mistake, and they contest which of them is the bigger idiot. George, having heard that his newlywed friend became more alluring with a wedding band, goes to Kramer to borrow his father's wedding band. Kramer suggests George cover his baldness instead.
Jerry gets a lifeline when someone else offers $5,000 for the upstairs apartment. Knowing that Elaine can't match the bid, Jerry gives thanks to divine intervention while pretending to be sorry for bursting her bubble. Unfortunately, Kramer nonchalantly volunteers Jerry to lend her the $5,000, insisting that it is no trouble to him. Kramer cannot understand why Elaine living upstairs would impinge on Jerry, and Jerry explains that only a Pod Person could live so freely as Kramer.
At the marathon brunch, Jerry turns off the host, Roxanne, with his disinterest in all the runners bringing up the rear. Many women are indeed attracted to George as he pretends to be married, and he misses out on pursuing a woman who gets free Madison Square Garden tickets; another woman who likes bald, spectacled men; and another woman who offers long-term, non-exclusive sex. Jerry puts on a strained smile as everyone congratulates him on having Elaine upstairs. Elaine finally questions whether this arrangement will be intrusive, but Jerry hesitates and misses his chance to back out. Jerry and George again compare their idiocy.
As George struggles to get the wedding band off, Jerry is finally resigned to confront Elaine, but he is bailed out when Kramer finds a musician who pays $10,000 to move in upstairs. Unfortunately, this results in a rock band practicing loudly upstairs at all hours of the day.