Ventriloquist Jerry Morgan has failed with another love affair. The reason: when the relationship reaches the point when it is time to discuss marriage, his two dolls become mean and jealous. Morgan's dollmaker Papinek is a member of a spy ring who has stolen the secret plans for the top-secret Lafayette airplane. Since Morgan is leaving for Zurich the same night, he decides to hide the secret plan in the heads of the dolls.
Danny Kaye
as Jerry Morgan
Mai Zetterling
as Ilse Nordstrom
Torin Thatcher
as Godfrey Langston
David Burns
as Marty Brown
Leon Askin
as Laslo Gromeck
Abner Biberman
as Maurice Papinek
Gavin Gordon
as Car Salesman
Otto Waldis
as Brodnik
Steven Geray
as Doctor Kreuger
Diana Adams
as Princess Maya
Patricia Denise
as Mama Morgan
Virginia Huston
as Audrey Greene