The film revolves around the story of Li Yitian, who struggles in a big city, showing the current situation of the life of a new generation of young people, focusing on the ordinary people who are trying to live in contemporary society, and their pain and struggle from ideals to helplessness to new life.
Yang Rui falls in love for the cleaning woman who works in a taekwando gym, only to later discover she's an undercover cop named An Xin. An is in hiding from drug smugglers who have a score to settle with her - a raid she led resulted in the death of one of the smuggler's parents. To complicate matters further, An was previously romantically involved with the smuggler whose parents were killed.
