A hack screenwriter writes a screenplay for a former silent film star who has faded into Hollywood obscurity.

Lorelei Lee is a beautiful showgirl engaged to be married to the wealthy Gus Esmond, much to the disapproval of Gus’ rich father. When Lorelei goes on a cruise accompanied only by her best friend, Dorothy Shaw, Esmond Sr. hires a private detective, to follow her and report any questionable behavior that would disqualify her from the marriage.

Betty Boop campaigns for Grampy to be the new mayor and he wins. As soon as he takes office, the citizens come out from everywhere to complain and to demand he fix things. Grampy is in his element.