The film is a romantic comedy about a group of Britons flying out from "Heathrow Airport" for a weekend in Paris in 1953 in a British European Airways Airspeed Ambassador. An English diplomat (Sim) is on a working trip to obtain an agreement with his Russian counterpart (Illing); a Royal Marine bandsman (Shiner) has a night out on the tiles after winning a pool of the French currency held by all the Marines in his band; a young woman (Bloom) finds romance with an older Frenchman (Dauphin) who gives her a tour of Paris; an amateur artist (Rutherford) searches out fellow painters on the Rive Gauche and in the Louvre; a hearty Englishman (Edwards) spends the entire weekend in an English-style pub; and a Operation Overlord veteran (Copeland) is an archetypal Scotsman in kilt and Tam o' Shanter (cap) who finds love with a young French woman (Gérard).