In the 1940s, the world was in turmoil, and it was crucial to decipher the enemy's communication codes in a timely and accurate manner. Rong Jinzhen has shown amazing mathematical talent since her childhood, and because she solved the problems assigned by her math teacher, she was noticed by more people, and even walked into the door of code-breaking by mistake.
Directed by Chen Sicheng
Liu Haoran
容金珍
John Cusack
希伊斯
Chen Daoming
郑某
Daniel Wu
小黎黎（容小来）
Yu Feihong
叶筱凝（容太太）
Chen Sicheng
我
Ren Luyao
翟莉（小梅）
Chen Yusi
容必瑜
