 Joyce Jowett has just lost her husband when a stranger called Nigel Wheeler turns up in Aidensfield asking for him. He is a financial advisor and while he is in the area he might as well visit other potential customers. One of them is Jo Weston and PC Rowan decides to take a closer look at him. George Ward and other villagers have received malicious letters. The only lead is that they are all written on the same typewriter.