She asked her to stay. Now she won't leave.

Finally free of her abusive ex, Zoe is rebuilding her life.

Then, on a parenting forum, she meets Lisa who is going through the same thing Zoe escaped- psychological torture at the hands of a cold, controlling partner.

Zoe rescues Lisa from her evil husband, Greg, and offers her a place to stay. It's supposed to be temporary, just until Lisa gets back on her feet.

But Lisa has no plans to leave.

Meanwhile, Greg is furious Zoe interfered in his marriage and is determined to destroy her life. He charms her coworkers, twists the truth, and turns everyone against her.

When the home she worked so hard to buy goes up in flames, Zoe knows she needs to fight back. She's handled abusive men before and Greg has no idea who he's dealing with...

But Lisa has a secret too. And when it's finally revealed, Zoe realizes she may be trapped in her own private hell.

The Stranger Inside - the chilling psychological thriller from the bestselling author of The Guilty Girl and Dear Sister.

What readers are saying about The Stranger Inside:

"This book was fantastic! I couldn't get enough! I was hooked from the first page... It was filled with so many twists and turns, I'm surprised I don't have whiplash!" -Goodreads Reviewer

"... Ruth Harrow is one of my favorites! Her thrillers are phenomenal! If you like Freida McFadden, you'd absolutely love Ruth Harrow! She packs in the twists in a way that isn't overwhelming but perfectly mind-blowing and jaw-dropping." -Goodreads Reviewer

"Love how this is written... hard to put down!! I loved the characters!" -Netgalley Reviewer

"... gripping... 5 stars!" -Booksprout Reviewer

"I couldn't stop reading once I started... the tension built so naturally that I kept telling myself "just one more chapter." This is the kind of book that stays with you long after you finish." -Netgalley Reviewer

"This is one of the best thrillers I've read in a while. I was sweating. My heart rate increased, and the pacing was so perfect." -Netgalley Reviewer

• We started tracking this book on September 2, 2025.
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• Literature & FictionLiterary FictionMystery, Thriller & Suspense
• Literature & FictionWomen's FictionPsychological
• Literature & FictionGenre FictionPsychological

• Publication Date: September 7, 2025
• Text-to-Speech: Disabled
• Lending: Disabled
• Print Length: 341 Pages
• File Size: 22 KB