When you wake up without your memories, who can you really trust? Pioneering scientist Iris Henderson chose to be her own first test-subject for an experimental therapy, placing a piece of technology into her brain. At least, this is what everyone tells her. Trouble is, Iris is now without her memories so she doesn't know what the therapy is or why she would ever decide to volunteer for it. Everyone warns her to leave it alone, but Iris doesn't know who to trust. As she scratches beneath the surface of her seemingly happy marriage and successful career, a catastrophic chain of events is set in motion. Secrets will be revealed that have the capacity to destroy her whole life, but Iris can't stop digging.