It's late at night, and there's hardly any car on the road. Only the street lights live here and on both sides.

Suddenly an ambulance whistled past, followed by a car behind the ambulance. The two cars were so close that the ambulance in front suddenly accelerated and threw the car behind.

Driving along the highway for a while, the ambulance saw that the car behind did not follow, and immediately extinguished the siren and slowed down the speed.

There was a man lying quietly in the ambulance, his face covered with white cloth.

The man was sitting next to a nurse-like man with a mask and could not see...