“‘We have this ridiculous high-tech security system,’ Georgina said […] ‘Honestly, sometimes when the postman calls it takes me five minutes to remember how to open the bloody thing.’ ‘She’s exaggerating,’ said Theo. ‘It’s not that complicated. It uses Swiss technology. Controls the doors and windows too. This place is impenetrable.’”

This exchange introduces how the high-tech security system at Georgina and Theo’s home provides the guise of safety while actually creating danger. The dialogue is ironic, as Theo’s pride in the home’s impenetrability foreshadows its transformation from a sanctuary into a prison. The quotation also contributes to critiques of wealth and social status, since Theo and Georgina live incredibly privileged and sheltered lives while still believing they may be under threat.

“‘Apparently,’ Georgina said, ‘he had a secret passage built into the house, but we think that’s a load of rubbish, don’t we, Theo? We’ve never been able to find it.’”

Georgina’s statement introduces the secret passage, a symbol for the repressed histories and hidden truths existing beneath the characters’ lives. The quotation demonstrates how Edwards generates suspense through mentions of seemingly insignificant details that later become significant to the plot.

“‘We are going to harness the power of psychometric and behavioral testing […] Call me an old hippie, if you like, but I’m a strong believer in love.’ I blinked at him, taken aback by this declaration, which seemed to contrast with the statement he’d just made about taking a scientific approach.”

Spoken by Marlowe, this quote reveals the core contradiction of his Butterfly Net project. He juxtaposes the clinical language of science (“harness the power of psychometric […] testing”) with the romantic ideal of love. The quotation sets the stage for the novel’s exploration of how logic and reason typically fail when they come in conflict with strong emotions like lust, greed, or envy.

“‘This is it,’ she said in an awestruck tone. ‘This is where the movie of my life finally begins.’”

Sophie’s exclamation upon seeing Thornwood reflects the naivety of the main characters at the start of the summer of 1999. Her youthful optimism frames the summer as a romantic adventure, a perception that stands in stark contrast to the trauma and violence that will later define the experience.

“‘Look at you all,’ Amber said, her voice drenched in contempt. ‘Revolutionaries? Professor Marlowe would be ashamed.’”

Delivered after the captors have taken control, Amber’s line mocks the six terrified former team members. The rhetorical question “Revolutionaries?” contrasts the group’s youthful idealism at Thornwood with their current status as powerless victims. While the team members face a legitimately frightening and dangerous situation, they quickly descend into squabbling rather than collaboration. Given their intelligence and skillset, they fail to respond effectively to their captivity.

“Can you imagine, wanting to drive around in the car that killed your parents?”

Sophie poses this question after the group learns that Dominic still drives the Jaguar that his parents were driving when they were involved in a fatal accident. This detail hints that Dominic does not have conventional emotional responses and explains why other characters (such as Lily and Professor Marlowe) later readily believe that Dominic is a psychopath.

“Do you know the phrase ‘everything echoes’?”

Callum poses this question to Will after revealing he has researched the entire group, echoing a phrase used earlier by Finn. This repetition leads Will to believe that the night’s mysterious and sinister events are somehow all connected and positions him in the role of detective as he tries to understand what is really happening.

“‘Unrequited love,’ said Dominic. ‘Tragic.’”

In a 1999 flashback, Dominic taunts Will, implying that Will’s feelings for Sophie will not be returned. The quotation reflects Will’s growing sense of insecurity and jealousy, which will lead him to readily believe that Sophie chose Dominic over him. The quotation also establishes Dominic as manipulative and cruel, explaining why he functions as the antagonist, even if he is not actually a psychopath.

“‘You’re going to vote,’ he said.”

This sentence from Callum transforms the home invasion into a psychological experiment. While Callum’s ultimate goal is to learn the secret, he creates a complex structure in which the former team members are pitted against one another. The vote serves as a dark parody of democratic choice in a situation in which all of the team members are vulnerable and afraid.

“‘I hate them,’ said Eve. ‘They’re evil. Nature’s psychopaths.’”

Following an incident involving a swarm of wasps, Eve’s observation gives the novel its title and central symbol. By explicitly linking the insects to psychopathy, her comment provides the conceptual foundation for Lily’s “Wasp Trap” test. This quote uses the natural world as a metaphor for the primal, chaotic violence that the characters attempt, and ultimately fail, to categorize and contain through scientific means.

“One of you has a secret. One of you just got Theo killed.”

After executing Theo, Callum delivers this stark statement to the survivors. The statement reframes the murder not as an act committed solely by the captors, but as a direct consequence of the group’s collective silence. This shifts the burden of guilt onto the secret-keeper, heightening the psychological tension and transforming passive victims into complicit participants.

“Of all the people who had promised to find her sister, Finn was the only one she’d had any faith in.”

This sentence establishes Mia’s motivations and highlights the failure of official institutions to resolve Olivia’s disappearance. Her faith in a private detective underscores a turn toward extralegal methods to uncover the truth, a decision that precipitates the violent events of the dinner party. The quotation also reveals how despite being a teenager, Mia is the only member of her family to step up and actively pursue justice after her sister vanishes.

“In Notting Hill, no one can hear you scream.”

Callum’s comment subverts the house’s position as a fortress of wealth and security, transforming it into an isolated space where violence can occur with impunity. The isolation and absence of community created by a wealthy enclave where individuals value privacy, and security ends up rendering it the perfect site for a crime.

“What if we do uncover someone like the guy who murdered Sebastian’s wife? Isn’t it dangerous to expose someone like that? I worry it would be, well…it would be like poking a wasps’ nest.”

Will’s question serves as direct foreshadowing, voicing the inherent danger of the group’s psychological experiment. The metaphor “poking a wasps’ nest” explicitly connects their project to the “Wasp Trap” symbol, articulating the risk of provoking a violent, uncontrolled reaction. This hesitation positions Will as a figure of reason and caution who contrasts with the group’s general enthusiasm, setting the stage for him to later emerge as a hero during the dinner party events.

“He reached into his pocket and pulled something out, holding it up for me to see. A condom in its wrapper.”

This moment of misinterpretation is the catalyst for a misunderstanding that dictates the course of Will’s life. Will is easily duped by Dominic’s cocky and misleading gesture, implying that Dominic and Sophie are about to have sex. Will’s misperception curtails the possibility of a happy relationship with Sophie, revealing how characters often think they know what is happening in a given situation, but rarely do.

“I don’t mean ‘how could you sleep with Georgina?’ I mean, how could you think I screwed Dominic? He came to my room for a tarot reading. That’s all.”

Delivered after Will’s confession, Sophie’s dialogue dismantles the central misunderstanding that has affected him for decades. She clarifies that she never slept with Dominic and that the fall out between Will and Sophie is the result of a tragic misunderstanding. This revelation foreshadows how other events are going to be radically reframed when new information emerges (for example, all of Georgina’s lies).

“He had scored eighty-three. He couldn’t be rehabilitated. He would always be a threat.”

Lily’s internal monologue reveals her justification for letting Dominic drown, reducing his fate to a numerical score from her own test. The short, declarative sentences convey a sense of certainty, portraying her decision not as an act of panic but as a logical conclusion based on her data. Lily’s decision comes from good intentions but turns out to rest on a false premise (the high score did not actually come from Dominic’s assessment).

“Exactly. And, more importantly, a wasp of his own to study. A real, live psychopath to be his subject. One he could do what he liked with. No restrictions. No ethical codes to worry about.”

Dominic explains Professor Marlowe’s motive for faking his death and imprisoning him. Marlowe’s obsession with his research leads him to engage in cruelty, highlighting how seemingly rational pursuit of scientific knowledge can have ethical ramifications. This information also positions Dominic as someone who was vulnerable and exploited by a parental surrogate, creating a more complex characterization of someone previously depicted as a villain.

“He had been handsome once. Really fucking handsome, but years trapped in this place had robbed him of that beauty. Now, he could hardly bear to see himself in the mirror.”

This passage of interior monologue offers insight into the psychological and physical decay Dominic experienced during his captivity. The moment of self-reflection creates a degree of pathos for a character previously established as a murderer, complicating his villainy. It illustrates the long-term, destructive consequences of Marlowe’s actions, positioning Dominic as someone with normal desires for love and connection.

“The elimination game was something we did if we knew someone in the organization had stolen from us but we didn’t know who. We’d gather together every potential suspect, lock them in an empty warehouse, and make them turn on each other, just like tonight.”

Callum’s explanation provides context for the dinner party’s violent turn, connecting it to a history of organized crime. This quote explicitly frames the evening’s events as a “game,” revealing that Callum has sadistically heightened the tension rather than trying to extract the secret as efficiently as possible.

“I need to talk to you. I found something and I don’t know what to do. […] It’s all Claude’s fault. He led me in there and now I’m really scared and confused.”

This quote is textual evidence that pivots the novel toward Olivia’s discovery. The phrase “he led me in there” implicates the house’s secret passage, a metaphor for repressed history, in her disappearance. The message illustrates how tightly controlled secrets can be jeopardized by unpredictable events (such as a cat wandering in a random direction) where hidden truths inevitably find a way to surface.

“Eighty-three. […] It meant that she, Georgina, was a psychopath. She wasn’t shocked. She wasn’t even surprised. It told her what she had suspected ever since they had all started talking about psychopathy here.”

Georgina’s internal monologue reveals the novel’s core deception: She, not Dominic, received the high score on Lily’s psychopath test. Her detached tone confirms her lack of empathy and establishes the accuracy of the test she weaponized by switching the results. The quotation also hints at how characters have been led astray by stereotypes: Dominic’s hot temper and sinister demeanor make it easy to believe that he is a psychopath, while Georgina is much better at concealing her true nature.

“‘She couldn’t care,’ Mia said. ‘She detailed that in her journal too. She switched the tests. Hers and Dominic’s. It was you who got the high score, wasn’t it, Mum?’”

Delivered by her own daughter, this public accusation is the climactic reveal of Georgina’s secrets. Mia’s use of Olivia’s journal as evidence demonstrates how buried truths resurface. The dialogue connects the deceptions of 1999 to the present-day tragedy, showing how one act of manipulation led to a cascade of violence. It also reveals that Georgina is the true villain, capable of doing something as heinous as murdering her own child.