The savior of the movie or something

David is a successful person who keeps up with the trend of the times, with an enviable career and a warm and harmonious family. But after a traffic accident, everything took a tragic turn. David drove off the road to avoid a black dog appearing on the road out of thin air. In this vicious traffic accident, David miraculously didn't get any fatal blow, only his head was bruised. However, a woman who lived as a fortune teller in Shigang died. The court did not hold David criminally responsible for this, but at the moment he walked out of the court, he was stopped by an old man in Shigang, leaving a puzzling sentence: An angel died because of you, you must save many people, or your relatives will leave you one by one.