A luxurious house is for sale at a remarkably low price. A mysterious mansion promises comfort and security... then its inhabitants vanish after thirty days. When journalist Grace moves in, she discovers that the house isn't haunted, it's alive. It observes, tests, and categorizes those who enter its walls, absorbing the weak and preserving the strong. Every room changes, every shadow whispers, and every heartbeat reflects the pulse of the house. As the thirtieth day approaches, Grace must confront the house's terrifying intelligence, overcome its trials, and survive a test that will push her mind, body, and will to their limits. But the house has learned over decades—over centuries—and survival may require more than just courage. It may require you to become something you never imagined. A gripping and terrifying psychological thriller for fans of horror, suspense, and modern stories where the line between man and house blurs.