They used arsenic to obtain chemical divorces and strychnine to settle scores. They bludgeoned husbands to make way for lovers. They flattened love triangles with blunt objects. They murdered for money, for revenge, for pleasure./ Meet the heiress who just could not take "no" for an answer from her mechanic lover; meet the two nursing home workers whose deadly game ended after the murders of six residents; meet the three sirens who lured...