A serial killers guide to marriage

Novel by Asia McKay. 
Hazel and Fox are ordinary married couple with a baby. Except for one small thing: they’re murderers. Well, they used to be. They had it all: an enviable London lifestyle, five star travels, and plenty of bad men to read from the world. Then Hazel got pregnant. Now they’re just another mom and dad and baby. They gave up vigilante justice For life in the suburbs: arrange play dates instead of body, disposals, diapers over daggers, mommy conversations instead of the sweet seduction right before a kill. Hazel finds her new life terribly doll. And the more she forces herself to play with her monotonous predictable role, the more she begins to feel that murders itch again.