The Case of the Frightened Lady is a 1940 British 'Edgar Wallace' crime mystery thriller film. It features Marius Goring, Helen Haye, Penelope Dudley-Ward, Felix Aylmer, George Merritt, Ronald Shiner, Patrick Barr, and Torin Thatcher.
A story that revolves around the Lebanon family who live at Mark's Priory. Lady Lebanon tells her son, William, Lord Lebanon that he must marry his cousin Isla Crane to continue the family line. However, William has no intention of marrying Isla and matters are made more complicated due to Isla falling in love with an architect, Richard Ferraby, who has come to Mark's Priory to draw up renovation plans. At the same time the strange behaviour of two footmen and the family physician add to the mystery surrounding the family. Eventually rumour and speculation lead to a murderous conclusion.