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Listen to Summary

Plot Summary

The Unconventional Proposal

Ainsley and Peter's marriage struggles

Ainsley and Peter Greenburg, a couple with three children, find their marriage stagnant and devoid of passion. In a desperate attempt to rekindle their relationship, Ainsley proposes an open marriage, suggesting they see other people on specific days. They establish strict rules to prevent emotional entanglements, hoping this arrangement will reignite their connection. Despite their mutual agreement, both harbor doubts and fears about the potential consequences of their decision.

Secrets and Lies Unveiled

Peter's hidden infidelities surface

As the arrangement begins, Peter struggles with guilt over past affairs, which Ainsley is unaware of. He matches with Gina, a coworker, and Mallory, a young woman, on a dating app. Meanwhile, Ainsley goes on a date with Stefan, a seemingly kind widower. However, Stefan becomes increasingly obsessive, sending Ainsley numerous messages. Ainsley blocks him, but the situation escalates when Stefan shows up at their home, leading to a confrontation.

Dangerous Liaisons

Ainsley's date turns sinister

Ainsley is alarmed by Stefan's persistence and his knowledge of her real identity. She confides in Peter, who is consumed by jealousy and fear. The couple's arrangement, meant to save their marriage, spirals into chaos as they grapple with the consequences of their actions. Ainsley realizes the danger Stefan poses, but her attempts to distance herself only intensify his obsession, culminating in a terrifying encounter at their home.

The Unexpected Visitor

Stefan's visit ends in violence

Stefan arrives at the Greenburgs' home, demanding to see Ainsley. Peter confronts him, and in a moment of panic, strikes Stefan with a baseball bat, killing him. The couple is left to deal with the aftermath of the murder, burying Stefan's body under their porch. As they attempt to cover up the crime, they are haunted by guilt and fear of discovery, their marriage further strained by the weight of their secret.

A Deadly Encounter

Illiana's search for her husband

Illiana De Luca, Stefan's wife, confronts Ainsley, demanding to know her husband's whereabouts. Ainsley feigns ignorance, but Illiana's persistence threatens to unravel their carefully constructed lies. The police become involved, suspecting foul play in Stefan's disappearance. As the investigation intensifies, Ainsley and Peter's relationship is tested to its limits, forcing them to confront the truth about their marriage and the choices they've made.

The Aftermath of Deception

The truth about Stefan is revealed

The police inform Ainsley and Peter that Stefan was a serial rapist, and Illiana may have been complicit in his crimes. This revelation shifts the focus of the investigation, providing the couple with a temporary reprieve. However, the strain of their secrets and lies continues to weigh heavily on them. Ainsley and Peter must decide whether to come clean or continue living with the burden of their actions.

Truths and Consequences

Ainsley's confession changes everything

Ainsley reveals to Peter that she orchestrated Stefan's death to bind them together, knowing about his past infidelities. Her confession shocks Peter, who grapples with the realization that their marriage is built on manipulation and deceit. Despite the betrayal, Ainsley insists that their shared secret can strengthen their bond, leaving Peter to question whether he can forgive her and move forward.

The Final Revelation

Peter's dark secret is exposed

In a chilling twist, Peter discovers that Ainsley has uncovered his true nature as a serial killer. The couple's marriage, once a facade of normalcy, is now a twisted alliance of shared guilt and complicity. As they face the future, bound by their darkest secrets, Ainsley and Peter must navigate the complexities of their relationship, knowing that their love is forever tainted by the crimes they've committed.

Characters

Ainsley Greenburg

Desperate and manipulative wife

Ainsley is a devoted mother and wife who proposes an open marriage to save her relationship with Peter. Her desperation leads her to manipulate events, orchestrating Stefan's death to bind Peter to her. Ainsley's actions reveal a darker side, driven by a need for control and fear of losing her family.

Peter Greenburg

Guilt-ridden and conflicted husband

Peter is a successful architect struggling with guilt over past infidelities. His participation in the open marriage is driven by a desire to please Ainsley, but it leads to a violent confrontation with Stefan. Peter's internal conflict is exacerbated by his dark secret as a serial killer, which ultimately binds him to Ainsley in a twisted alliance.

Stefan De Luca

Obsessive and dangerous suitor

Stefan is a widower who becomes fixated on Ainsley after their date. His obsessive behavior escalates, culminating in a deadly confrontation with Peter. The revelation of his criminal past as a serial rapist adds complexity to his character, highlighting the danger he posed to Ainsley.

Illiana De Luca

Determined and suspicious wife

Illiana is Stefan's wife, who confronts Ainsley about her husband's disappearance. Her determination to uncover the truth about Stefan's fate leads to a tense confrontation with the Greenburgs. Illiana's involvement in Stefan's crimes adds a layer of intrigue to her character, complicating the investigation.

Gina

Supportive coworker and confidante

Gina is Peter's coworker and potential romantic interest. Her presence in the story highlights Peter's internal conflict and desire for connection outside his marriage. Gina's role as a confidante provides Peter with a sounding board for his emotions, though their relationship remains platonic.

Mallory

Casual and carefree date

Mallory is a young woman Peter meets through the dating app. Her carefree attitude and willingness to engage in a casual relationship contrast with the seriousness of Peter's situation. Mallory's presence serves as a catalyst for Peter's realization of the consequences of his actions.

Glennon

Loyal and protective friend

Glennon is Ainsley's best friend, who provides support and guidance throughout the story. Her loyalty to Ainsley is unwavering, even as she grapples with the truth about Peter's infidelity. Glennon's protective nature underscores the importance of friendship in Ainsley's life.

Seth

Secretive and conflicted partner

Seth is Glennon's husband and Peter's secret lover. His relationship with Peter adds complexity to the story, highlighting the hidden layers of deception within the Greenburgs' marriage. Seth's struggle with his identity and loyalty to Glennon adds depth to his character.

Plot Devices

Open Marriage Arrangement

A desperate attempt to save a marriage

The open marriage arrangement is the catalyst for the story, setting off a chain of events that lead to deception, betrayal, and murder. It serves as a plot device to explore the complexities of relationships and the lengths individuals will go to preserve their sense of security and love.

Secrets and Lies

The foundation of a crumbling marriage

Secrets and lies are central to the narrative, driving the characters' actions and decisions. The revelation of hidden truths forces Ainsley and Peter to confront the reality of their marriage, ultimately binding them together in a shared guilt and complicity.

Murder and Cover-Up

A deadly consequence of manipulation

The murder of Stefan De Luca is a pivotal plot device that heightens the tension and stakes for the Greenburgs. The cover-up of the crime forces Ainsley and Peter to navigate a web of lies, testing their loyalty and commitment to each other.

Twists and Revelations

Unpredictable turns that challenge perceptions

The story is filled with twists and revelations that challenge the characters' perceptions of themselves and each other. These plot devices keep the reader engaged, as the true nature of the characters and their actions are gradually unveiled.

Analysis

A dark exploration of marriage and identity

"The Arrangement" delves into the complexities of marriage, identity, and the lengths individuals will go to preserve their sense of security and love. The story challenges traditional notions of fidelity and trust, revealing the darker aspects of human nature. Through the characters' actions and decisions, the narrative explores themes of manipulation, control, and the consequences of deception. The book serves as a cautionary tale about the dangers of living a life built on secrets and lies, ultimately questioning whether true redemption and forgiveness are possible in the face of such profound betrayal.

Last updated:

Review Summary

4.09 out of 5
Average of 100k+ ratings from Goodreads and Amazon.

The Arrangement received mixed reviews, with many praising its fast-paced, twist-filled plot. Readers found it engaging and surprising, despite some implausible elements. The story follows a couple attempting to save their marriage through an open relationship, leading to unexpected consequences. Critics appreciated the suspenseful narrative but noted issues with character development and believability. Some readers found the numerous twists excessive, while others enjoyed the unpredictable nature of the story. Overall, it was described as an entertaining, quick read that kept readers guessing until the end.

About the Author

Kiersten Modglin is a bestselling author of psychological thrillers, with over two million books sold and translations in multiple languages. She has received numerous awards, including ThrillerFix's Best Psychological Thriller Award and Suspense Magazine's Best Book of 2021 Award. Modglin grew up in Kentucky and now resides in Nashville with her family. Known affectionately as "KMod" by her readers, she is a member of several writing organizations and enjoys binge-watching, psychology, and indoor activities. Modglin engages with her fans through various social media platforms and attends book signings across the country. Her website offers information on upcoming events and opportunities to connect with the author.

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