Oswald and Marilyn, played by Timothy Spall and Lindsay Duncan, are the custodians of the collection of 10 million black and white photographs housed in a beautiful period building on the edge of London. Their peaceful old fashioned existence is threatened when some Americans buy the property to turn it into a business school. They have to use their resources and ingenuity to fight the forces of the modern world and as they do so their battle uncovers a mystery from the past, hidden away amongst the photos which has a dramatic effect on the lives of all those involved. "A meditation on the nature of photographic images, a celebration of old-world English eccentricity at threat in a world of high-technology glossiness, and a reminder that nothing in our heritage is sacred" (Sunday Times)