After losing his wife and his memory in a car accident, a single father undergoes an agonizing experimental treatment that causes him to question who he really is.After losing his wife and his memory in a car accident, a single father undergoes an agonizing experimental treatment that causes him to question who he really is.After losing his wife and his memory in a car accident, a single father undergoes an agonizing experimental treatment that causes him to question who he really is.