Production Companies: As One Production , CMC Pictures , Tianjin Maoyan Weiying Culture Media , Tao Piao Piao , 北京乐开花影业有限公司 , 上影寰亚文化发展（上海）有限公司 .
Overview: 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.
, CMC Pictures 
, Tianjin Maoyan Weiying Culture Media , Tao Piao Piao 
, 北京乐开花影业有限公司 , 上影寰亚文化发展（上海）有限公司 .
