A toxic friendship. A shattered marriage. A deadly secret . . . The author of Murder at the Book Club delivers a twisty domestic thriller.

When Cass walks into their lives, Lila and Owen are both bewitched by her charms. Cass is vibrant, confident, and everything Lila feels she no longer is. Soon, her influence begins to seep into every corner of their lives. Yet, as Cass grows closer to Lila, Owen, and her daughters, Lila’s life begins to unravel.

Feeling she is on the outside of her own life, Lila confides in her oldest friend, Zara, but even she can’t prevent the inevitable from happening. Before long, a bitter power struggle unfolds, fueled by betrayal, secrets, and manipulation. Trust becomes a weapon as Lila’s very sanity is pushed to its limits . . .

How far would you go to protect the life you’ve built for yourself?

For fans of The Housemaid, Magpie, and The Silent Patient comes a gripping psychological thriller about betrayal, obsession, and the fragile line between stability and madness.