Dos ladrones retirados son chantajeados por Chung, un expolicía, para que den clases sobre respeto en un centro de menores. Sin embargo, su pasado como maleantes no tardará en resurgir.
Ling's parents has been separated when she was small, however, she always miss her brother, Ding. Ling's boyfriend is a social worker. One day, he sees a youngster who looks like Ling's brother and loves drinking cream soda and milk. Nevertheless, Ding doesn't want to meet his sister..
