In this outlandish, sidesplitting tale of the fortunes of the Duchy of Grand Fenwick, a mythical land on the verge of bankruptcy because its one export, a fine wine, has been undercut by a US company. Grand Fenwick's prime minister (Peter Sellers) and female monarch (Sellers again) cook up a scheme to solve the problem: they will declare war on the States.
Dr. Henry Jekyll is a dull, bookish scientist who spends more time with his lab animals testing theories of alternate personalities than with his beautiful, young wife. Kitty Jekyll has given up trying to find any passion in her distant, preoccupied husband and is involved in an affair with one of Jekyll's old 'friends,' Paul Allen, a weak slacker and wastrel who relies on Jekyll to pay his numerous gambling debts. After experimenting on himself, the bearded, tweedy Jekyll transforms himself into the young, dynamic, and self-confidant Edward Hyde.
