 A rich Brazilian, Mendoza, visited Paris in 1900 and was romantically involved with the star of Offenbach s "La Vie Parisienne" which was playing at the time. Thirty five years later, he returns with his son and granddaughter, who is engaged to a young Frenchman. But Mendoza s puritanical son forbids the marriage. Mendoza and the actress s friends conspire to change his mind and soon succeed in converting him to "Parisian life".