The lovely blond Spanish twins known as Pili y Mili (aka Pilar and Emilia Bayona) and prolific leading man Alberto Vasquez play familiar, but engaging games of 'which twin is which'. The preparations for a stage musical give the well dressed "mod" cast a chance to sing and dance. The girls become unwittingly snared in backstage intrigue that endangers them, although all is kept pretty lightweight. A treat for fans of Mexican 60's rock with Los Yaqui in a club scene doing "Devil with a Blue Dress" in Spanish. Very colorful and not commonly found, this is a treat for seekers of international 60's teen pop culture. If the local Spanish language station in your area plays it, it will probably be at 4:00 AM with many many commercials (PSA's and station promos especially) breaking the insubstantial narrative beyond comprehension.