When Miss Sarah Sheridan receives a mysterious letter, her staid life as her cousin's companion in Bath is quite overset. The only way she can solve the mystery is by returning to Blanchland, once her home and now belonging to Sir Ralph Covell, a byword for depravity! Her disquiet is compounded by an unexpected meeting with Guy, Viscount Renshaw, who at first gains quite the wrong impression of Sarah! Her reputation will be ruined if she goes, and Guy determines he must help her...