| Country | People's Republic of China |
|---|---|
| Box office | $80.8 million |
The film depicts a constable (捕快) named Li Mao who is married to Yang Jiazhen, a woman from a rich family, who unexpectedly discovers that he is the spitting image of the crown prince. Li Mao wants to go to the imperial palace to get a promotion, while the crown prince wishes to leave the palace and live freely. As a result, the two switch identities, but are drawn into the schemes of high officials.