52 pages 1-hour read

A Stranger in the House

Fiction | Novel | Adult | Published in 2017

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Chapters 40-49Chapter Summaries & Analyses

Content Warning: This section of the guide includes discussion of domestic abuse, death by suicide, and mental illness.

Chapter 40 Summary

Tom awakes the next morning to a loud banging on his front door. He goes downstairs in his robe and opens the door to the police. They are there with a warrant to search the house. Tom calls the lawyer Jack Calvin and informs him of the search. Calvin advises Tom to let them in. The police search a toolbox in the garage and find the gun. Tom is shocked because he had searched in that toolbox while Karen was in the hospital and hadn’t found anything.


Tom tells Calvin the police found the murder weapon in the garage. Calvin tells Tom to meet him at the jail so they can discuss it with Karen. Tom realizes Brigid must have planted the gun in the toolbox.

Chapter 41 Summary

Karen meets with Calvin and Tom. She is stunned to hear about the discovery of the gun. Tom confesses to Calvin and Karen that Brigid has been obsessed with him since he broke off their affair before he met Karen. He tells Karen that he slept with Brigid after Brigid threatened to go to the police with what she had seen the night of the murder. He thinks Brigid picked up the gun from the murder scene and planted it in their house.


They decide to get the door of the restaurant and their house dusted for Brigid’s fingerprints to prove she was in both locations. Karen realizes the scenario creates reasonable doubt in her case. They can argue Brigid is trying to frame Karen “because she’s in love with [Karen’s] husband” (256).

Chapter 42 Summary

Detective Rasbach talks to Calvin. Calvin tells the detective the gun was planted and that they should check if any of the prints at the house match those at the crime scene.


Karen wonders if she should continue to tell the police the truth—that she does not know what happened that night—or if she should lie that she now remembers arguing with Robert and running away, then insinuating Brigid must have entered the restaurant and killed Robert herself.


The next morning, Detective Rasbach confirms that an “unknown person” was both at the restaurant and had gone through the Krupps’ things. He also learns that none of Robert’s prints were found in the Krupps’ house.

Chapter 43 Summary

Karen tells the detectives her story. She tells them she used to be married to Robert but that she faked her death to escape his abuse. She tells them she had been frightened he would hurt Tom when he called her the night of August 13th. She admits to taking the gun, but she insists she only threatened him with it, she never fired it. She says she ran out of the restaurant, dropped the gun and gloves, got in the car, and sped away. She accuses Brigid of entering the restaurant after she left and shooting Robert in an attempt to frame Karen for the murder so Brigid could have Tom to herself. She tells the detectives that Brigid blackmailed Tom into having sex with her.


Detective Rasbach is skeptical of Karen’s story. He finds it hard to believe she has suddenly remembered the events of the night of the murder with such clarity. He also does not understand why an abusive man like Robert would let her escape alive.


Later that day, the detectives get a call from forensics confirming the gun they found in the toolbox was the murder weapon.

Chapter 44 Summary

Brigid is furious that Tom has not been staying at his house since it was searched by the police. That afternoon, the detectives go to Brigid’s house. She lets them in and agrees to talk to them. They ask if she will give them her fingerprints, and she agrees. Her husband, Bob, returns home. He is alarmed to see them fingerprinting his wife.


That evening, Rasbach learns Brigid’s fingerprints were at the crime scene and in the Krupp house. Brigid was the stalker.

Chapter 45 Summary

The next morning, the detectives bring Tom in for questioning. He tells them that after Karen was arrested, Brigid came over and told Tom she had witnessed Karen at the scene of the crime. She had threatened to go to the police unless Tom had sex with her. Tom insists to the detectives that, despite Brigid’s statements, he does not believe Karen committed the crime. He tells them that Brigid is obsessed with him. He assumes Brigid copied the spare key he had given her while they were having an affair. Tom tells them that on the night of the murder, Brigid had seen Robert Traynor snooping around the Krupp house.

Chapter 46 Summary

That afternoon, the detectives ask Brigid to come to the police station for a formal interview. She agrees. The detectives ask Brigid about her relationship with the Krupps. She tells them she is friends with Karen. They press Brigid on her alibi for the night of August 13th. They tell her they know she followed Karen.


She admits she followed Karen instead of meeting Tom. She tells them she saw Karen enter the restaurant, followed by the sound of the three gunshots. Then, Karen rushed out, dropped her gloves, and sped away. She admits to entering the restaurant and seeing the dead man. She claims she did not come forward because Karen is her friend. She denies picking up the gun and planting it in the Krupps’ toolbox.


They tell her that they found Brigid’s fingerprints on the public telephone used to phone the tips in about the gun. They accuse her of killing Robert and planting the gun. She asks for a lawyer and the interview ends.

Chapter 47 Summary

The detectives do not believe either Brigid or Karen are being entirely honest. They worry the district attorney will be forced to drop the charges against Karen, as Karen will be able to convincingly point the finger at Brigid.


Later that day, Rasbach presents his case to D.A. Susan Grimes. He thinks Karen killed Robert, but he admits that Brigid’s obsession with Tom and the planting of the gun creates reasonable doubt, as the defense can argue Brigid framed Karen. The D.A. drops the charges against Karen.

Chapter 48 Summary

Karen returns home. She feels relieved that her ordeal is over. Tom was initially upset Karen lied to the detectives about remembering what happened that evening, but he soon got over it. They promise each other to make a fresh start.


Brigid still lives across the street. Her husband, Bob, has left her. Tom finds a new job at another accounting firm. Tom and Karen both hope Brigid will soon sell her house and move away.

Chapter 49 Summary

A few months after the murder, Karen takes the train into New York City. While on the train, she reflects on everything that has happened. She thinks about how much she loves Tom and how much he tries to protect her, even though “she’s the kind of woman from whom men need to be protected” (300).


Karen has remembered what happened that night. She thinks about how she met Robert in Vegas at a casino. He was handsome, rich, and kind. She realized that he used his antique business as a cover for a money laundering operation. She had planned to take advantage of him. She met with the counselor at the battered women’s shelter to provide a cover for her story of abuse. Then, she stole the cash out of Robert’s safe, faked her death, and changed her identity. Karen stashed over $2 million in a bank safety deposit box in NYC.


The night Robert called, she planned to murder him. She left the house with the gloves and the gun. She met him at the restaurant and shot him. She was rattled by the act and dropped the gun and the gloves as she tried to unlock the car door. If Brigid had not planted the gun, Karen would have been convicted of the murder. Brigid continues to watch the Krupps from across the street. She has resolved not to leave the house. She is pregnant with Tom’s child and is determined to “make Karen pay” (305).

Chapters 40-49 Analysis

An essential structural element of the domestic thriller is the plot twist. A plot twist is a revelation of information that radically reframes the reader’s understanding of the narrative and/or its characters. A Stranger in the House ends on one such plot twist when it is revealed that Karen’s first husband Robert was not abusive and that she faked her own death to get away with robbing him.


This understanding completely reframes Karen’s character, adding another dimension to The Reinvention of Identity. It indicates that she is incredibly devious and manipulative in order to get what she wants. She is forthright and self-aware of this quality. She admits that “she knew that if he did come after her, and wanted his money back, she would have to kill him” (301). She carefully planned for this outcome without any regard for the life of Robert or how it would impact Tom. She can easily manipulate those around her to get what she wants. The murder was premeditated; all of her assertions to Tom that she was not the kind of person who could commit murder were lies.


Karen’s continuing deception adds a further twist to The Impact of Secrets on Relationships. After she is released from jail, she and Tom fully reconcile and vow to begin a fresh start together. Karen has forgiven him for his pressured one-night stand with Brigid, and Tom fully believes that Karen has been exonerated of Robert’s murder. The couple thus appears to be happy and enjoying a harmonious domestic life together once again. However, while Karen thinks with satisfaction about Tom’s deep love for her as she heads to NYC, she emphasizes the fact that his trust in her is entirely misplaced: “[S]he’s the kind of woman from whom men need to be protected” (300). Thus, while Tom assumes he now knows everything about Karen’s past, the narrative makes it clear that Karen is actually far more deceitful and dangerous than Tom has ever suspected.


The narrative also ends with a plot twist that involves Brigid, Karen’s foil: “And—she has a secret. Brigid smiles and looks down at the item that she’s knitting with the utmost care: an impossibly small baby sweater […] She has lots of things to knit now” (304). This is an oblique way of revealing that Brigid is pregnant with Tom’s child from the time they had sex while Karen was in jail. While Karen has a sense of smug satisfaction for having gotten away with murder thanks to Brigid’s obsessive behavior, she is mistaken in assuming she has “won” the conflict between the two women. This plot twist about Brigid’s pregnancy and vow to get revenge shows that the tension and conflict between the two of them is not to be neatly resolved: It will continue even after the end of the book itself, creating a cliffhanger. The ending implies the two rivals will now be jockeying for the position of lady of the house for decades to come.


This conclusion neatly underlines the theme of The Façade of Suburban Perfection. As noted previously, the opening paragraphs paint an idyllic suburban neighborhood. The early chapters present the characters as prosperous and settled, if a little dull. The primary characters all seemingly adhere to stereotypes of this setting. Karen and Tom are a young, hardworking couple. Karen and Brigid are best friends and neighbors. Brigid is also an apparently contented housewife recognized for her achievements in her hobby, knitting.


By the end of the novel, nearly every aspect of this image has been undermined. Karen is a thief and murderer. Brigid is an obsessive divorcée stalker. Only Tom, the accountant, remains unchanged. He is the vulnerable party who is unwilling or unable to recognize the deeper truth underneath the façade. In revealing the dark secrets and motives that still remain below the outwardly ordinary domestic surface, the novel reinforces the sense that appearances can be deceiving.

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