Walter, a writer for an ad agency and Donovan, his artist partner, are working on an ad for spark plugs. They contrast their dreams of high artistic achievement with the reality of selling spark plugs, but reaffirm their love for each other.
Finally, after several dead-end ideas, they come up with a winner; it seems an omen of future greatness. But when the mail comes, Walter receives a stack of rejection letters for his novel, while Donovan gets a grant, which will enable her to paint full time.
Walter now defends the advertising business and calls Donovan a snob. She says she could forgive anything but his bad taste. They admit that they love each other in a way, but on that bittersweet note Donovan leaves and Walter goes back to work.