From Paris, London and the USA. They are the world’s most popular artists. The works of Cezanne, Monet, Degas and their compatriots fetch tens of millions of dollars. But just who were they really? Why and how did they paint? What lies behind their enduring appeal? To help answer these questions, the film has secured unique access to a major new exhibition focussing on the 19th century Parisian art collector Paul Durand-Ruel, the outspoken champion of Impressionism. This eagerly anticipated exhibition is perhaps the most comprehensive ever held about the Impressionists.