Niles is planning to propose to Daphne, and he wants everything to be just perfect. Frasier helps him to choose a ring; Roz advises him on what (and what not) to say; and even Martin takes part in the wine-tasting, although after several glasses he discovers why, when Niles asks him to take Daphne's mother out for the evening. He reluctantly agrees, and has to spend the evening fending off Gertrude's amorous advances. Meanwhile, while Frasier and Niles are arranging everything at Niles' apartment, and Wolfgang Puck is preparing dinner for them, Daphne arrives in a terrible state and announces that she has the flu. Suddenly, Frasier has to smuggle numerous participants out of the apartment unseen, but Niles soon realises that the event itself need not be postponed. Ultimately, Niles proposes to Daphne and she accepts, and they both spend time together despite her being ill.