There is a barber shop deep in Huaihua Lane in the south of the city, which has been open for thirty years. The sign has faded to pale yellow, and the "Open" sign on the glass door is always turned on the back. Neighbors say that the boss Lin Mo is good at his craftsmanship, but he has a weird temper - he only accepts business after ten o'clock in the evening. The sound of the rolling shutter being pulled up was like an old man coughing, and the crisp sound of the scissors opening and closing was mixed with the current noise of the old radio, which spread far in the deep alley. Visitors who come frequently will find that the hands of the stopped clock on the wall always tremble slightly at midnight.