Such Devoted Sisters, Part 1

S1, E5: The Walsingham Hotel has seen it all and come through the war battered but unbowed. But can the grand old place cope with murder? When Captain Victor Orr is felled by a poisoned cocktail in the hotel bar, there is no end of potential suspects--including Trottie! But was Captain Orr the intended victim? The two exiled Princesses of Scutari--living in constant fear of assassination--think not.