Ah Wen (Louis Koo) is a minibus driver who died in a traffic accident. His newlywed wife Xiao Hui (Cecilia Cheung) endures the pain and continues to live, and also has to take care of Ah Wen's son Le Le (Harashima Daichi) born to his ex-wife. She starts a new life by driving the minibus Ah Wen used before his death, but people in the industry look down on this female minibus driver. She is full of ambition but encounters obstacles everywhere. Da Hui (Lau Ching Wan) sympathizes with her experience and begins to teach her some rules and competition methods that need to be paid attention to in the industry. Under the pressure of life, Xiao Hui wants Le Le to live a good life, so she plans to give Le Le to his biological mother to raise. Da Hui stops her and promises to help raise Le Le, but in fact Da Hui also has a lot of knots in his heart that cannot be untied. Two people with the same heavy hearts come together.