American students, Tommy and Annette, find themselves in a heap of trouble when they accidentally discover an art forgery ring in Florence, Italy.
Tommy Kirk
as Tommy Carpenter
Annette Funicello
as Annette Aliotto
Nino Castelnuovo
as Bruno
Clelia Matania
as Aunt Gisella
Carlo Rizzo
as Uncle Mario
Ivan Desny
as Count Roberto
Venantino Venantini
as Lorenzo
Ivan Triesault
as Professor Levenson
Odoardo Spadaro
as Padrone
Renzo Palmer
as Carabiniere
Richard Watson
as Butler
Helen Stirling
as Miss Brooks
