John Hoyt plays Mr. Franz, a kindly but lonely doll maker with a dark secret. In addition to his skill at producing dolls, he has also perfected a method of shrinking human beings down to doll size (or "puppet size"). He has also developed a method for keeping them in suspended animation until he takes them out of their storage cylinders and forces them to have little parties for his amusement. June Kenney (credited as "June Kenny") plays Franz's new secretary who engages in a whirlwind romance with a salesman (played by John Agar) before they are both shrunk down and join Franz's collection.