He thought he buried her. Until she looked him in the eyes and forgot his name. Six years after losing Serena in a devastating car explosion, billionaire heart surgeon Elias Vaughn is about to marry someone else until Sierra walks into his hospital. She has Serena’s face, her voice, her mannerisms… but not her memories. Sierra doesn't know who she was, but someone does and they want her to forget. As Pieces of her past start coming back little by little, so do the secrets Elias tried to bury when he thought she was gone started coming back. Now he's stuck between the life between the life he rebuilt and the woman he never stopped mourning, and as everything starts to unravel Elias begins to wonder if the accident was really an accident, if the grief was real or if he ever truly knew the people around him But the more they try to find the truth the more dangerous it gets. Because Serena didn’t just survive. She uncovered something worth killing for.