Oliver de Murville, claiming to be an important businessman, has arrived on Santa Sabina as a guest of the French government in order to negotiate a business deal with the local dignitaries. Along with his adorable fiancee Lisette Coty, and her mother Denise, he is put in the care of Marcel Lamont - the dashing and passionate hero of Diplomatic Pleasures. Marcel is only too happy to escort the group when he discovers what charms the pretty Lisette has to offer. Little does he realise, however, that in order to get his hands on her he must first overcome some difficult obstacles. Along the way, Marcel's diplomatic dalliance take him from Serafina da Silva's musical intruments to Lucreza Bonavista's knickers and Gabrielle Delacoste's whip. Eventually he gets the girl he wants - along with the added attraction of her mother.