From Mo Hayder comes a dark, gripping standalone thriller that explores obsession, control, and the devastating impact of secrets.

Sisters Zoë and Sally Benedict couldn’t be more different. Zoë is controlled, successful, and fiercely protective of her carefully built life. Sally, impulsive and vulnerable, is caught in a dangerous cycle she can’t seem to escape. But when Sally becomes entangled with a manipulative and controlling man, her situation takes a sinister turn.

As Zoë is pulled deeper into her sister’s world, she begins to uncover disturbing truths—about the people around them and the lengths someone will go to maintain power. What starts as concern quickly spirals into something far more dangerous, where control, fear, and survival collide.

✨ Genre: Crime Thriller / Psychological Thriller
🌶️ Spice Level: Low (dark themes, not romance-focused)

📚 Series: Standalone

Dark, tense, and deeply unsettling—perfect for readers who love psychological thrillers, complex characters, and stories that explore the darker side of human relationships.