How do you rebuild a life from the ashes of despair?

London 1958. Twenty-six-year-old Betty Fisher is one of the first to join the Campaign for Nuclear Disarmament and attend its inaugural meeting, where she meets John Harris. Posted to Berlin towards the end of the war, John has been left traumatised by his experiences in Germany. And, as his initial admiration for Betty shifts into an overwhelming need to protect her, he is plagued by flashbacks and fantasies. John's increasing fragility brings to the surface Betty's own memories. And soon her past, too, begins to unravel…