Buyer Beware: A Thriller

Catherine Ryan Howard

Simon and Schuster, Jul 28, 2026 - Fiction - 288 pages

From the internationally bestselling author of 56 Days, a page-turning thriller about two women whose shattered lives come crashing together around a house whose secrets could bury them both.

If these walls could talk, they’d scream...

When Ellie moves to 1 Delaney Row, she hopes to find a fresh start—a place where no one knows her name, her history, or her secrets. But what she doesn’t know is that her new home is already hiding someone else’s secrets—and the people determined to keep them are watching her.

As Ellie starts to unravel the house's disturbing backstory, coming closer to the shocking mystery at its center, she unwittingly puts herself on a deadly collision course not just with her new home’s history, but with her own as well.

A puzzle box of a thriller full of mind-boggling twists and turns, Buyer Beware is a chilling exploration of the dark secrets that any house can hold—and of the lengths we’ll go to start over.

About the author

Catherine Ryan Howard is an award-winning, #1 bestselling thriller writer from Cork, Ireland. Her work has been shortlisted for the Mystery Writers of America Edgar Award for Best Novel, the UK Crime Writers Association John Creasey/New Blood and Ian Fleming Steel Dagger Awards, and the An Post Irish Crime Fiction Book of the Year multiple times. Her novels have been included in The New York Times Best Thrillers of the Year, The Washington Post’s Best Mysteries and Thrillers of the Year, and The Sunday Times (London)’s Best Thrillers of the Year. She is published in twenty languages, and a number of her titles have been optioned for the screen. Catherine’s fifth novel, 56 Days, won the An Post Irish Crime Fiction Book of the Year and was longlisted for the Dublin Literary Award, the world’s most valuable annual literary prize. A screen adaptation starring Dove Cameron and Avan Jogia debuted exclusively on Amazon Prime Video in early 2026. Prior to writing full time, Catherine worked for a travel company in the Netherlands and in Walt Disney World, Florida. She lives in Dublin.

Bibliographic information

• Title: Buyer Beware: A Thriller
• Author: Catherine Ryan Howard
• Publisher: Simon and Schuster, 2026
• ISBN: 166807513X, 9781668075135
• Length: 288 pages
• Subjects: Fiction / Thrillers / Crime; Fiction / Thrillers / Suspense; Fiction / Women