After they fall in love over long-distance business phone conversations, young Englishman Gavin Shipman and winsome Welsh lass Stacey West seal the deal and get married shortly after a London rendezvous. Their whirlwind courtship also rocks the world of their respective best friends, Neil "Smithy" Smith and Vanessa "Nessa" Jenkins, who hate each other at first sight yet keep hooking up together after several drinks have flowed.