THE EXCHANGE

Adaeze "Dezi" Nwosu-Strand has spent twelve years making impossible calls look routine. As an ER charge nurse, she decides which crises are real and which ones can wait. She is very good at reading a situation and acting fast. She convinced her husband Reid to try a home exchange for June — their Charlotte colonial for a lakeside cabin in Maine — because she could see what they'd become if they didn't. Four weeks away. Real rest. A marriage running on schedule finally allowed to run on something else.

The cabin is exactly what the listing promised.

Then the texts from the neighbors start.

Loved meeting your sister! from Marilyn across the street. Your cousin picked up the school forms, from the front office. Whoever she is, she makes amazing jollof. Before Dezi can process what any of this means, there's a doorbell camera clip from Thursday night: a woman she has never seen in her life letting herself through the front door with Dezi's spare key — then turning, once she's inside, to look directly into the camera and wave. Not startled. Not checking. Waving. By the time Dezi traces the bank alerts, two accounts have been opened in her name. The woman has been added to the school pickup list. Fenwick Court has adopted her completely.

Her name is Rika Sizemore.

Dezi has never heard it before.

But when she reads the name aloud to Reid, he says it back to her before she finishes the sentence.

She's spent her career learning that the fastest way to understand a crisis is to stop reacting and start reading — and she has no idea how long she's been reading the wrong story. He's been holding a version of the past between them for three years, offering small reassurances where the truth should have been, waiting to see if the thing he buried would stay buried.

It didn't.

Domestic suspense with a compressed timeline, a phone screen, and a marriage that survives the wrong things for too long. The kind of book you read with all the lights on because you keep hearing something downstairs that's probably nothing.

WHY THIS WILL SELL

→ Domestic Thrillers sits at a 48.0 sales-to-comp (Hot Mainstream) with an estimated 656 daily sales per top 20 title — the single highest sales-to-comp ratio in the MTS catalog; demand is dramatically outpacing supply at the top of the market

→ Dual-category play with MTS › Psychological Thrillers — the #1 most-used category combination among the top 100 MTS bestsellers; captures both the algorithm shelf and the literary-adjacent reader simultaneously

→ The restricted protagonist is the differentiation — threat unfolds through documentary evidence (texts, doorbell clips, bank alerts) while she's 900 miles away; no comparable in the top-100 comp set uses this structure

→ Documentary interstitials are a KU performance driver — evidence format prevents skip-ahead behavior, producing strong page-read velocity and completion rates that compound in the algorithm

→ Identity-encroachment premise is social-share optimized — the waving doorbell clip and the husband saying the name back are the two moments that drive BookTok shares and reader-to-reader recommendations

→ Short-chapter binge structure mirrors the category's top performers — 38 chapters plus epilogue at domestic thriller pacing; the format is proven to compound KU page reads with retail sell-through

TROPES: • Unreliable Husband • Stranger in the House • Identity Theft as Home Invasion • Restricted Protagonist • Documentary Evidence Format • Phone-Screen Dread • Marriage With a Secret Architecture • Neighbor Witness Structure • Past Fraud Resurfacing • Widow Seeking Justice • The Spare Key • Home Exchange Gone Wrong • Dramatic Irony — Reader Ahead of the Protagonist • One Confrontation, One Kitchen

Content Intensity: Psychological / Dread-Dominant — sustained surveillance unease, identity violation, and the slow collapse of a marriage; one physical confrontation in the final act, non-graphic; no gratuitous violence or gore; the horror is what she sees through the phone screen

Perfect for fans of: Freida McFadden, Lucy Foley, Ruth Ware, and B.A. Paris

WHAT'S INSIDE THIS PACKAGE

⭐️ Story Premise — high-concept pitch, elevator pitch, and Market-Matched™ market validation with dual-category positioning (Domestic + Psychological), Suspense Architecture with six-clue Clue Ledger, Red Herring Map, Dramatic Irony tracking, and competitive analysis

⭐️ Complete Codex — full story bible with Dezi, Reid, Rika, and supporting cast of 7 (including three fully developed Fenwick Court neighbors); Charlotte colonial and Maine lakeside cabin setting guides; Documentary Evidence Archive of 17 interstitials; surface timeline and full hidden timeline; AI Voice & Style Guide with Dezi's clinical-to-cracking register built in

⭐️ Chapter-by-Chapter Outline — 38 chapters + epilogue with emotional beats, 17 HOME interstitials specified by chapter, Hidden Timeline table, Fair-Play Audit with mechanical explanation for every planted clue, and Clue Ledger tracking per chapter

⭐️ AI-Ready Chapter Prompts — self-contained writing instructions for all chapter types; full priority prompts for 15 key chapters including the pivot chapters (17 and 22), the confrontation sequence, and the epilogue; supplementary interstitial prompt format

⭐️ Marketing Copy — Amazon listing with categories and keywords, long and short back cover copy, four taglines, social copy bank for Instagram/Facebook and BookTok, email welcome sequence, reader magnet copy, audio act description, and two Ideogram cover prompts with full typography spec

⭐️ Market-Matched™ Brief — one-page buyer-facing market analysis with lane differentiation, comp performance context, format and pricing fit, and the one-line pitch

One buyer. One story. Exclusively yours.