10 Books Similar to “A Serial Killer’s Guide to Marriage” by Asia Mackay

A Serial Killer’s Guide to Marriage

by Asia Mackay (2025)

Two former serial killers trying to keep their past buried realize that old habits die hard in this “wildly original, razor-sharp thriller” (Chris Whitaker, New York Times bestselling author of All the Colors of the Dark). “An invaluable manual that I return to again and again.”―Hugh Grant I wasn't smashing the patriarchy; I was killing it. Literally. Hazel and Fox are an 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 rid 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: arranged 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 dull. And the more she forces herself to play her monotonous, predictable role, the more she begins to feel that murderous itch again. Meanwhile, Fox has really taken to being a father. Always the planner, he loves being five steps ahead of everyone and knowing exactly what’s coming around the bend. Plus, if anyone can understand Hazel needing one more kill, it’s Fox. But then Hazel kills someone without telling Fox. And when police show up at their door, Hazel realizes it will take everything she has to keep her family together.