The Very Idea is an American comedy film directed by Frank Craven and Richard Rosson and written by William LeBaron, based on his play of the same title.
His sister, Edith Goodhue, and her husband, Gilbert have been frustrated for years with their inability to have children.
Chosen to be the parents of this eugenic child are Joe Garvin, who happens to be Alan's chauffeur, and Nora, the Goodhues' maid.
To give the young couple room to move ahead with the plan, the Goodhues leave on a year trip to California.
When the Goodhues return from California, they find their home has been converted into a nursery, occupied by Mr. and Mrs. Garvin, who have married.