Melanie Daniels, a young socialite, meets lawyer Mitch Brenner in a San Francisco bird shop. He wants to purchase a pair of lovebirds for his sister's eleventh birthday, but the shop has none. He recognizes her from a previous encounter, but she does not remember him, so he plays a prank by pretending to mistake her for a salesperson. She is infuriated when she realizes this, even though she also likes to play practical jokes.