The Couple’s Secret

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Series: Detective Josie Quinn #23
Published by: Bookouture
Release Date: September 1, 2025
Pages: 368
ISBN13: 978-1805501428
Synopsis
The couple in the photo smile at the camera, arms wrapped around each other, faces alight with happiness. They were two people getting a second chance at love, trying to blend their young families and start a new life together. Until their smiles became frozen for the camera forever as their lives were cut tragically short by a horrifying act of violence…
Seven years ago, Tobias Lachlan and his fiancée Cora Stevens went out for a romantic dinner together. They left the restaurant smiling and holding hands, Cora sent a text message to say they were on the way home… but they were never seen again, leaving their family and friends with broken hearts and unanswered questions.
Detective Josie Quinn is shocked when she’s called to investigate the discovery of their bodies in a submerged car in the river just outside Denton. The medical report soon shows that Tobias and Cora were brutally murdered, sending shockwaves through the community and reopening the case that police thought had long gone cold.
With no obvious clues, and no sightings of the couple after they left the restaurant that night, Josie draws a blank. Tobias and Cora’s children, now grown, can’t imagine who might have wanted their parents dead. The discovery of a tiny old-fashioned key in the remnants of Cora’s purse could unlock the mystery, but no one knows what the key might open, and Josie can’t figure out what it meant to Cora. But secrets don’t stay buried forever, and if Josie knows one thing to be true, it’s this: someone always knows something. As she digs deeper, Josie finds evidence that this perfect couple might have been keeping secrets. Secrets from their children, and secrets from each other.
But then another body is found—another member of the family, tragically silenced forever. Josie’s investigation has stirred up more than just the river bed, and she knows that the killer is now even more desperate to keep their secrets hidden. Who is trying to rip this family apart, and can Josie find out before it’s too late?
An absolutely nail-biting and utterly gripping crime thriller from Amazon, USA Today and Wall Street Journal bestselling author Lisa Regan. Fans of Angela Marsons, Robert Dugoni and Rachel Caine will not be able to stop turning the pages!
Add on GoodreadsPRAISE FOR THE COUPLE’S SECRET:
“Wow! Just wow! The more I read this latest book in the Josie Quinn series, the more shocked I became. What a thrilling story with shocking twists! I even had to stop reading for a moment at one point to say, “Oh wow!”
– Robin Loves Reading
“The Couple’s Secret is a must-read for anyone who loves a suspenseful, twisted, cold-case mystery with a psychological mind twist. As always, the pacing is excellent, and the slow reveal of Cora and Tobias’s secrets will keep you guessing until the very end. Josie’s methodical yet intuitive approach makes for an engaging read every time.”
– Author Katie Mettner
“After all the Josie Quinn books, one would think you'd be used to Lisa Regan's writing ability to steal your mind and place it into Denton PA, yet it still amazes me. I'm an avid reader and always find myself excitedly anticipating the books written by Lisa, and The Couple's Secret did not disappoint! What I wouldn't give to live a day with Josie Quinn and her family and friends; that's assuming I'm not the victim! Thank you Lisa for making my life better one book at a time!”
– Mel, Amazon Reviewer
“Regan’s writing is slick, cinematic, and immersive—you hear the river dripping, taste the metallic tang of betrayal, and see those perfect smiles turn sinister. The pacing? Relentless. Just when you think you’ve caught your breath, Regan yanks the rug out. Bottom line: The Couple’s Secret is dark, addictive, and heartbreakingly human. Josie Quinn fans, cancel your plans—this one’s a one-sitting knockout.”
– VDKeck, Amazon Reviewer
Also in this series: