Mainlander and financial analyst Cheng Zi Xin, who followed her then boyfriend Owen to Hong Kong, runs into her ex-boyfriend while riding the bus. Owen is now with his pregnant wife and when his wife spots Owen talking to his ex she freaks out. Cheng hurriedly gets off the bus and, being in a daze, is almost run over by a car. A haggard drunk named Fang then saves Cheng.
Meanwhile, in
