Veronica Ashford built the perfect AI security system. She never imagined it would witness the perfect murder. On Christmas Eve, tech CEO Theodore Marsh collapses dead at his own celebration. The house AI-speaking in Veronica's voice-locks everyone inside. Multiple suspects. Multiple poisons. Multiple motives. Detective Asha Kade must solve the murder before a 24-hour countdown exposes everyone's darkest secrets. But in a house where everything is monitored, the real question isn't who killed Theodore Marsh. It's who will survive the truth.