The Fake or Fortune team have been called in to investigate a mysterious painting in Castle of Park, a grand house in Aberdeenshire now run as a bed and breakfast by Becky Wilson. The painting once belonged to Becky's late husband Neil, an art dealer, and although it was unsigned he always believed it was something special - a lost masterpiece by celebrated 19th-century French artist Paul Delaroche, whose work graces some of Britain's finest collections.