When a woman’s body is dragged from the Regent’s Canal on a freezing January night in 1920, eminent forensic pathologist and criminal sleuth Dr Bernard Spilsbury immediately detects foul play. And when a second woman washes up dead under suspiciously similar circumstances, police realise they are looking for a dangerous predator. Is someone luring lonely spinsters to their deaths through a newspaper Lonely Hearts column? And can they be stopped before they strike again?