The Break-in by Katherine Faulkner asks how far you’d go to protect your family

How would you deal with killing a violent intruder in self-defense—with your child just a room away? Katherine Faulkner’s The Break-in explores the terrifying aftermath of that choice, blending suspense with tough moral questions about justice, guilt, and survival.

Alice, a London mother, is hosting a playdate when a disturbed man forces his way inside. Acting on instinct, she kills him, an act later ruled self-defense. But the relief doesn’t last. Anonymous online comments, cryptic phone calls, and unsettling behavior from her husband, nanny, and friends make Alice question who the intruder really was—and whether the threat has truly ended.

What makes The Break-in stand out is the way Faulkner layers suspense with ethical dilemmas. Is it acceptable to kill someone who only causes harm? Should those who enable destructive behavior bear responsibility too? And if you were involved in a death but not the one who “pulled the trigger,” what consequences should you face? These questions linger long after the final page.

The story moves quickly, packed with tension and twists, though the ending feels uneven. There’s a point where it seems the novel has reached its natural close, only to continue with a lengthy reveal that slows the momentum. While Faulkner clearly wanted to deliver on threads she’d been building, the payoff could have landed more smoothly.

Even so, The Break-in is both gripping and thought-provoking. It entertains as a page-turner, but it also unsettles, leaving readers to wrestle with uncomfortable truths about justice and what it really means to protect the people you love.

Book club question: If someone kills a dangerous person in self-defense, should they be free to move on—or should they always face consequences?

An advance reader copy of this book (ARC) was provided to me by the publisher via Netgalley in exchange for an honest review.

Related Content

• The Other Mothers by Katherine Faulkner – Book Review (Book Club)
• Katherine Faulkner’s 7 recommended thrillers to cozy up with this winter (Zibby Mag)
• Katherine Faulkner weaves murder, class, and motherhood together in twisty new mystery novel (Charlotte Readers Podcast)
• Katherine Faulkner on researching for The Other Mothers (United by Pop)

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Now that Jack has been forced to reflect on everything he has to lose, he resolves to do better. He’s determined to spend more time at home with his family and repair the relationships that have suffered over the years while he’s been so focused on work. But as Callie’s behavior becomes increasingly bizarre, Jack realizes he has a lot more room to improve than he realized – and it might be too late to save his daughter after all.

For fans of We Need to Talk About Kevin, The Push, and Baby Teeth.