Chip delights Polly with an expensive locket for her 18th Birthday and after their vague conversation, he thinks he's agreed to go steady, but Polly tells her mother that she has become engaged. Perturbed by her husband's probable reaction, Mrs. Williams arranges a luncheon to judge the seriousness of the matter.

Dressed as a cat for a costume party at the home of his employer in Bel Air, Steve goes for gasoline when his car stalls but the police arrest him as a burglar. Meanwhile, Polly notes that there is so much love in the Douglas household, that she just has to become a part of it.