His father perished in a car accident a year ago, and his mother was left in a coma. On the first anniversary of his father's death, a son pushes his wheelchair-bound mother to his father's tombstone, where he runs into Dr. Li Min, a seasoned specialist who treated his parents and eventually sent his father away. Dr. Li Min unties the knot in his heart and reveals to his son the true cause of his father's death.
