The two sisters Haohao and Zhouzhou (five and eight) spend most of their time outside of school in the electronics market of Huaqiangbei, a market in Shenzhen once known for its counterfeit electronics products, now the center of electronics production in China. As new immigrants to the city, their parents started a ten-square-meter shop on the ninth floor of the market a year ago. In the eyes of the two sisters, the world of electronics gradually opened up to them, then transformed into an imaginary world of dangerous creatures and ghost stories. The other children in the market are also spreading the word that a violent storm is coming.