User analysis:
At the beginning of the movie, Qin Feng kept flashing memories in his mind on the plane, which led to Qin Feng's father. Because Qin Feng didn't count the number of people in front of the bank carefully, he lied on purpose, which led to his father's arrest and imprisonment.
Q knew all about Qin Feng's childhood, so in the middle game, he specially designed the number of people at the traffic lights to test Qin Feng.
Since it was a childhood, it was also an unforgettable pain for Qin Feng. Of course, Qin Feng didn't mention it to anyone, so Q actually knew these most secret past events.
Therefore, the netizen's guess is that Qin Feng's father is probably related to the big boss of Q organization in Andy Lau, or Qin Feng's father used to be a member of Q organization. Probably Qin Feng's father founded this organization, fled because of his different ideas from Andy Lau, and was eventually framed and imprisoned.
Many netizens say that Qin Feng has a dual personality, Qin =Qin = Q, and I should know the pronunciation of Tang people. Yi Song once said: When you stare into the abyss, the abyss is staring at you. It means: you are looking for Q, and Q is beside you. And at the end of the second season, half of Qin Feng's face was illuminated, and the other half was not. This may not mean that he is going into darkness, but a dual personality …
In Detective Chinatown 3, Qin Feng, played by Liu Haoran, dreamed that his father was arrested, all because of a lie Qin Feng told when he was young. Because these are only memories of Qin Feng in his dream, the audience only know that the actor who plays Qin Feng's father is Zhang Guoqiang. Zhang Guoqiang once played Bonnie and Clyde with actor Yin Tao, and Zhang Guoqiang was caught inside the bank. Many viewers will think that Qin Feng's father is a recidivist, and his father was arrested because of Qin Feng's playfulness.
This explanation seems reasonable, but if you carefully recall Qin Feng's resume, you will find that Zhang Guoqiang's role as Qin's father is by no means so simple.