John Hoyt is a doll manufacturer and he's lonely. In order to have constant (and obedient) company he takes unsuspecting people into the back room of his shop and shrinks them. The little people are kept in glass tubes and taken out for parties and dancing on the table. Recently shrunk John Agar rebels, and leads an escape plot. Decides he has had enough and attacks, by detroying the Dr. Jeckel marionette.