The Arrangement book cover

The Arrangement by Kiersten Modglin Summary

The Arrangement
Kiersten Modglin
Thriller
Mystery
Relationship
Fiction
Overview
Key Takeaways
Author
FAQs

Overview of The Arrangement

A marriage-saving experiment turns deadly in "The Arrangement," the award-winning psychological thriller that left 123,000+ Goodreads readers gasping. With more twists than "politics has liars," Modglin's masterpiece proves why open marriages and dark secrets make a dangerously addictive combination.

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Key takeaways

1

A Perfect Marriage Built on Perfect Lies

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What would you do to save your marriage? For Peter and Ainsley, the answer goes far beyond couples therapy or date nights. After fourteen years together and three children, their once-passionate relationship has deteriorated into parallel lives sharing a home. Their conversations revolve around logistics-soccer practices, dentist appointments, grocery lists-while intimacy has vanished like morning mist. When Ainsley proposes a radical solution one night after the kids are asleep, it seems desperate but logical: they'll each date other people while maintaining their family life together. The rules are meticulously crafted-designated days apart, fake names, protection required, regular testing, and above all, their children must never know. For Ainsley, this arrangement represents a last-ditch effort to recapture what they've lost. For Peter, it's a reluctant agreement tinged with fear about who his beautiful wife might meet. Neither realizes they're opening a door that leads straight into darkness-one that will expose secrets far more dangerous than infidelity.

2

When Fantasy Becomes Nightmare

3

The Web of Lies Tightens

4

The Architect of Destruction

5

Secrets Beneath Secrets

6

The Psychology of Perfect Monsters

7

When Trust Dies, Monsters Remain

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"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
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254
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17

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore
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