Fred Prouty and his wife, Nettie, are living happily until the day that his aged father shows up on their doorstep. He immediately begins creating havoc, upsetting the once-orderly household and trying to force his opinions on everyone. Nettie does her best to be patient with the old man, but the day comes when he brings a group of his pals over while she is holding a meeting of a fashionable club.

"If every married couple in America could see "Welcome Home," there'd be no divorces in 1926."