The Clinic by Cate Quinn

Her sister is dead. The clinic says suicide. She knows they're lying.

From the author of Black Widows, The Clinic is a chilling psychological thriller where addiction, trauma, and sisterhood twist through a locked-room mystery. Perfect for fans of The Sanatorium, The Silent Patient, and Stacy Willingham, it's a haunting descent into fractured memory, buried secrets, and the emotional cost of uncovering the truth.

When Meg's estranged sister―a rising Hollywood star―dies at an elite rehab facility on the storm-lashed Oregon coast, the official story is suicide. But Meg is convinced there's more to it. Haley had secrets, but surrender was never in her nature.

To expose what really happened, Meg checks into the clinic under a false name. But inside its isolated walls, Meg begins to unravel. The deeper she digs, the more her grip on reality falters―and the closer she gets to the truth her sister died trying