Pioneering scientist Iris Henderson awakes with no memories in a hospital bed. She is told that she is the first test-subject for an experimental therapy, placing a piece of AI technology into her brain. She is also told that she volunteered for it. But Iris doesn't know what the therapy is or why she would choose it. Everyone warns her to leave it alone. But as she scratches beneath the surface of her seemingly happy marriage and successful career, a catastrophic chain of events is set in motion, and secrets are revealed that have the capacity to destroy her whole life.