In a gray city where color and emotion are taboo, Lin Jing, a memory painter, inadvertently created a touch of blue with his longing for his dead sister.
This "dark blue" is the seed of hope and the evidence that leads to death.
In order to protect this only color, he was forced from an obedient citizen to a fugitive who rebelled against the system. Under the guidance of the underground organization, he discovered that he had the power to "draw" more vivid colors and taboos with emotion. Anger is the burning "blazing red", hope is the warm "bright yellow", each color is an arrow shooting into this cold world.
As he approached the truth step by step, he discovered that the city's founder and supreme arbiter was plotting an ultimate conspiracy concerning the fate of all mankind.
For the memory of his loved ones and for the thousands of imprisoned souls, he must make a choice.
Should we use color to ignite the fire of revolution, or should we remain silent with this gray world? This is an epic about art, emotion and resistance. When the world is only black and white, a touch of blue is enough to overturn everything.