There are many reasons, among which the two main ones are: hate from love and self-protection. Infernal Affairs, as a Hong Kong and Taiwan gangster film, has a very good reputation and influence both at home and abroad, including remakes in Japan, South Korea and the United States. The reason is that the theme of this film is a field that Hong Kong directors are very good at, so the plot and details are very good and novel. And the participants in this play are all powerful actors. No matter what age people watch this movie, they will be consciously attracted by it. Among them, Liu Jianming, played by Andy Lau, and Chen Yongren, played by Tony Leung Chiu Wai, are also very brilliant, and everyone knows that there has always been an important woman in Chen Yongren's heart, that is, Mary. So why did Chen Yongren let Mary get killed?

Love is not enough, so love begets hate.

Personally, one of the main reasons is that Liu Jianming is a gloomy person by nature. He has always liked Mary, even willing to be Chen Cheng's younger brother for her, and he has been with Mary ever since. In fact, Mary could detect Liu Jianming's unusual feelings for herself, but she chose to turn a blind eye. After Chen Cheng fled to Thailand, Liu Jianming and Mary got along day by day. He confessed to Mary, but she refused. Despite Liu Jianming's opposition, Mary insisted on going to Chen Cheng, and Liu Jianming, who fell in love with her, let Mary die.

Kill the murderer for your own safety.

On the other hand, Liu Jianming is also for her own safety. If Mary succeeds in meeting Chen Cheng, she will definitely tell Chen Cheng about herself and Mary. At that time, Liu Jianmin will not be able to follow Chen Cheng, and may even be pursued. This result was very unpleasant for Liu Jianming, who was just a pony at that time, so she had to choose to let Mary disappear from this world.

Li Jianming is a man who has fallen into endless hell.

Liu Jianming has brains, courage and ideas, so he can get along well with both gangs and police departments, but Liu Jianming, who has been in the light for a long time, wants to stay in the light forever, and he wants to be a good man again. But because Chen Cheng knew his identity, he had to remind himself of the identity of the gangster again and again. Later, in order to become a real good man, a man like Chen Yongren, Liu Jianming was under great mental pressure.

What do you think of Liu Jianming?