Isobel marries Lord Mountfast and Austin's engagement to Cynthia Dudcock is back on again. Doctor McDuff, whith encourgagment of Lady Patience, tries to get back the blackmail photos from Bradley's safe. A gun shot rings out throughout the house.

Inspector McDuff is called in to slove the crime of the Death of Lord Mountfast. Everyone is a suspect, but most of them have an alibi at the time. We also learn the deep dark secret of Charlotte.

Lady Patance is put on trail for the death of Lord Mountfast. Bradley tries once again the bankrupt Jack Fairchild. Isobel helps Jack out, but the price is Black Beauty.