There are several things I don't understand about the Korean film Yellow Sea.

Jiu Nan's wife basically didn't show up, that is, the woman who was dismembered by baldness in the aquatic products company. According to the news report in Jiu Nan, Jiu Nan was cheated by a bald man who started tracking and introducing his wife's work, but he was late and killed by the bald man. Two groups of professors hired the murderer. This person was hired by Professor Jiu Nan's wife through the husband of his wife's friend when she was a waiter in a hotel with a business card of Jin Zhenghuan, the head of the bank. Just because the waiter in the back was found to have a bank card doesn't mean that the professor's wife is a woman who is often drunk. Finally, the professor's wife and the bank president were observed by Jiu Nan, and they didn't communicate at all. At the instigation of the professor's wife, Jiu Nan was almost put into a container and buried alive. Another wave is that the president hired three people including the driver through his staff. The President thinks that Jiu Nan is also employed by his own staff. He wanted to find out that the future trouble had been eliminated, but he tracked down the face that made him angry. Finally, as said at the beginning, mad dogs hurt each other and died. The story of this crazy dog covers the meaning of the film. The mainstream motive of the president's murder is that his mistress was moved by the professor, while the non-mainstream motive is closer to the truth. The president likes the professor's wife.