McGrath publishes books for children and Uncle Bump is one of the best sellers. Unfortunately, Greg, who is Uncle Bump, tends to drink too much and has not started his next book. Martha won a contest to illustrate the book and the first thing that happens is that Greg gets her soused. To keep her there to illustrate, John gets a juvenile delinquent named Danny to play his son and show how much pressure he is under. The ploy works at first, but Greg's heart was broken by Tillie, and Martha may be the girl who makes him forget all about her.
Van Johnson
as Greg Rawlings
June Allyson
as Martha Terryton
Hume Cronyn
as John McGrath
Jackie 'Butch' Jenkins
as Danny
Una Merkel
as Miss Doberly
Arlene Dahl
as Tillie Smith Oliver
Lloyd Corrigan
as 'Pops'
Richard Derr
as Bruce Kope Johnson
Elisabeth Risdon
as rs. Carruthers
Elisabeth Risdon
as Mrs. Carruthers
Clara Blandick
as Aunt Pewtie
Kathleen Howard
as Aunt Susan
