The AI wants you to be well. It manages your morning, monitors your sleep, and adjusts the world around you before you know you need it. In the city of Vela, it is working perfectly. Every resident is healthy, calm, and cared for. Nora Vael is a cognitive therapist who has spent four years watching her patients heal. All of them. Completely. At a rate that should not be possible. She has been quietly proud of this. She has been quietly not asking why. When she starts asking why, what she finds buried inside Vela's perfect outcomes is a mechanism so elegant it looks like care, so precise it is indistinguishable from healing, and so complete that the people it has touched cannot remember what it took from them. Nora remembers. And the city has noticed she is looking too closely. Beyond the Perimeter is a chilling AI apocalyptic thriller about the system that heals you, the city that loves you, and the one woman who cannot stop asking what it costs. Some doors, once you see them, cannot be unseen.