It is 1941 and Captain Antonio Corelli, a young Italian officer, is posted to the Greek island of Cephallonia as part of the occupying forces.

At first he is ostracised by the locals, but as a conscientious but far from fanatical soldier, whose main aim is to have a peaceful war, he proves in time to be civilised, humorous - and a consummate musician. when the local doctor's daughter's letters to her fiance go unanswered, the working of the eternal triangle seems inevitable.

But can this fragile love survive as a war of bestial savagery gets closer and the lines are drawn between invader and defender.