Yu Si always believed that the world he lived in was unreasonable, such as his Mediterranean director, the money-grubbing owner of the corner fruit shop, the first bus that he couldn't get on every day, and... His neighbors.
In fact, it's not a big deal. Puzzling things happen all the time in the world. But if it's something around you that concerns you, then you have to seriously consider your position.
It was just a letter picked up at random, but what it brought was not the content of the piece of paper. An ordinary emergency doctor, his ordinary life ended with a letter from his neighbor.