In the early morning of March 17, 2006, the "Tsim Sha Tsui shooting" occurred in Hong Kong. On September 5, 2007, the 64th Venice International Film Festival produced the film "Detective" on the basis of this case and participated in the premiere as a finale film.

Du Qifeng's "Divine Detective": The divine god, the neurotic god.
"Detective" Chen Guibin has solved countless cases, but he is called crazy by everyone. He has a special skill - to see the split personality in the human heart, that is, to see the ghost in the human heart. His abilities made him a lonely man. However, Inspector He Jia'an of the Serious Crimes Unit asked his idol "Detective" Chen Guibin for help because it was difficult to solve the case. In the process of solving the case, Chen Guibin's unique way of solving the case and the cunning of the real murderer Gao Zhiwei made He Jia'an begin to reject Chen Guibin and throw himself into Gao Zhiwei's "hypocrisy". At the end of the film, Chen Guibin killed Gao Zhiwei in order to protect He Jia'an, but although he successfully killed Gao Zhiwei, he himself died under He Jia'an's "weak" and "sinister" personality.
Dedicate yourself to the highest good.
Chen Guibin can see the ghosts in people's hearts, which makes him a "madman". He pursued the supreme good, and when he retired from his post, he cut off his ear and gave it to the ghostless bureau chief, and he eagerly helped He Jia'an, who had a "weak" personality, and did not hesitate to die to compete with Gao Zhiwei, who had seven ghosts in his heart. He eventually died at the hands of those bad things. Kindness cannot survive in this land, which is the biggest emotion that the film gives to the audience.
One thought becomes a demon.
Ho Ka-an is a policeman who looks very tough, but his inner ghost is "weak". After solving the case, he was shot in the body and watched Chen Guibin slowly die under his gun. His fear gave rise to "cunning". At the end of the film, there are nearly two minutes to look down on He Jia'an to rearrange the murder scene to get rid of responsibility. A righteous cop finally left his name on the devil's list.
Unique approach to expression.
The film's uniqueness lies in the embodiment of the inner split personality, with different actors playing different personalities of a person. This makes the film more bizarre at the beginning, and also makes the complex psychological changes of the characters more concrete. In particular, the performance of "weakness" in He Jia'an's heart and the appearance of "insidiousness" in the end achieved an unexpected effect for the audience. This kind of expression is very novel, and it is also very in line with the plot design of "Detective".
Why do good people die? Every viewer should think about this. The ending of the film is that "Detective" Chen Guibin died, and He Jia's heart was reborn with a ghost. Although the case is solved, the ending seems to be the victory of the devil. Du Qifeng said at a press conference on the morning of September 6: "Everyone has a ghost in their heart, that is, they have different personalities, and people are all people, very ordinary, and have weaknesses, so there will be this film." The ending of the film is such that it reflects the various greed and desires of human nature in society. This is the film's warning to every viewer. ”
In reality, it is difficult to say whether good triumphs over evil or evil triumphs over good. It can only be said that greed and lust give birth to the ghost in the heart, and this ghost takes the human soul as its supper. Whenever late at night, looking back at yourself, can you see your own ghost?