Murder in Decent Society

London's prostitutes are mortally frightened: in the thick fog enveloping the city, a maniac attacks them. In a bloody shroud, he hunts for the unfortunate girls near the Thames, which is why he is called the River Spirit. After one of those foggy evenings, a woman's corpse is found in Green Park, but she turns out to be the missing wife of a wealthy antique dealer. Suspicion falls on several people, including the River Spirit. Inspector Ross and his remarkably clever wife Lizzie begin the investigation...