On October 8, 1920 the body of a young woman named Kate Lilian Bailey, aged 22, was discovered. It transpired that her husband, George Arthur Bailey, had poisoned his seven-months pregnant wife with prussic acid, and with a whiff of the same chloroform he used to ease her final anguish, sedated his three-year-old daughter whom he placed in bed next to the corpse. Fourteen hours later, he fled the cottage, taking his child to relatives in Swindon before being arrested three days after the murder,...