The first girl had a bite mark on her neck but they traced the DNA to her boyfriend. But the tabloids got hold of the story and called the killer 'The Rottweiler' and the name stuck. The latest murder takes place very near Inez Ferry's antique shop in Marylebone. Someone saw a shadowy figure running away past the station, but the only other clues are that the murderer usually strangles his victims and removes something personal - like a cigarette lighter or a necklace...Since her husband died, too soon in their relationship, Inez has supplemented her income by taking in tenants. The murderous activities of the sinister 'Rottweiler' will exert a profound influence on the lives of this heterogeneous little community, especially when the suspicion emerges that one of them may be a homicidal maniac.