Liu Yida

In Hong Kong, every inch of land is precious. Some of the lower-class people have no place to live and can only gather in beds in dilapidated buildings. These elderly, weak, sick and disabled people are separated from each other by barbed wire and are called caged people. Among them, Mr. Zu's (played by Qiao Hong) mentally challenged son (played by Liao Qizhi) is always playing and throwing tantrums. Tang SAN (played by Teddy Robin) is a minor character