Once a champion motorbike racer Ah B loses everything in a fixed match. He turns to drinking and gambling to pass the days until six years later his ex-wife Jiawei turns up unexpectedly with his son Bin Bin that he never knew about. The boy inspires him to turn his life around. Of course, she needles him in an adorably sassy way, making her one of those awesome in-the-movies-only girls who'll love a man faithfully even if he's a boozing, gambling layabout.