The story the screenwriter wants to tell is not a beautiful love story of a man with high IQ and high military value. Writers are more inclined to explore the spiritual level and inner world of the protagonist. In fact, one thing has been said from beginning to end, that is, a person who wants to blindly escape from reality must finally accept reality and be brave for his family. Perhaps from the anti-Japanese point of view, it means "there are no eggs under the nest" In times of national disaster, if the whole people don't resist Japan, there is only room for passive beatings. If you endure it again (it is clear that the man has been retreating until he cuts his finger), the robbers (Japanese devils) will not be polite to you. Saving the country by curve can never be successful, let alone generalizing (hiding in the concession and enjoying peace). You must fight bravely.

Xu Tian, the hero of this film, is a red color-blind and dizzy person. He can't tell red from gray. This is a very clever design, not to say that this design has much promotion and influence on the plot, but has a deeper expression of the theme. Xu Tian's blood disease is not congenital, but acquired. When did it start? Probably from seeing his father's bloody death. This has a great influence on him. He is afraid of blood and death, so he just wants to be an ordinary citizen.

Remember that red brochure? It recorded the names of seven * * * members who died in the line of duty and for the party. Every mission and the war of resistance have to pay the price of blood. By the way, Xu Tian's father is also a member of * * *. At that time, most of China was in crisis, and killing or resisting was not at the expense of blood. Red, with blood flowing, also indicates victory. There are also various forces in the concession, and everyone will persecute others for their own interests.