When the wedding of internationally famous film star Lara Tyler (Alice Eve) to tweedy English author James Arber (David Tennant) is sabotaged by a paparazzo, they decide to relocate one place where the world's press won't find them: the sleepy Scottish Island of Hegg. But to the shock of Lara's P.A Steve Korbitz (Michael Urie), the reality of the island is different from the Bride's romanticised vision and he has to transform this fantasy world before the superstar arrives. Things get even more complicated when an ingenious paparazzo tracks them down in his mission to photograph the celebrity wedding of the year. Enter Katie (Kelly Macdonald), a beautiful local who might be the perfect decoy bride.