Valentine's Day experiences for Niles, Frasier, and Martin and Daphne comprise this episode. First, Niles' cozy dinner for two at Frasier's apartment is ruined when the couch catches fire. Next, Frasier can't figure out whether his ambiguous dinner companion sees him as a co-worker or a romantic prospect. Finally, Martin and Daphne dine together, commiserating about their lonelines