电影《面具》讲述了一位潜伏在哈尔滨十年的国民党特工李春秋的故事。李春秋已经过上了平凡的生活，但是被上级唤醒并要求执行“黑虎计划”，这让他不得不弃暗投明，展开反戈一击。在执行任务的过程中，他要面对残忍冷酷的昔日战友以及同事、侦察科丁战国的怀疑和试探，内外交困之下，他的压力非常大。在逃脱保密局控制的过程中，李春秋不仅看到了国民党的腐败和血腥，对组织也产生了绝望之情，最终决定弃暗投明，加入中共。在三十天后的大年初一，他成功地反戈一击，配合共产党破坏了国民党的“黑虎计划”，并且与家人幸福团聚。整个故事情节跌宕起伏，充满紧张刺激，同时也反映了当时年代背景下人们的种种苦难和抉择。

The movie "Mask" tells the story of Li Chunqiu, a Kuomintang agent who has been lurking in Harbin for ten years. Li Chunqiu had already lived an ordinary life, but was awakened by his superiors and asked to implement the "Black Tiger Project", which forced him to abandon the dark and turn to the bright, and launched a counterattack. In the process of carrying out the mission, he has to face the suspicion and temptation of his cruel and cruel former comrades-in-arms and colleagues, scout Keding Zhanuo, under the internal and external difficulties, he is under great pressure. In the process of escaping from the control of the Secret Bureau, Li Chunqiu not only saw the corruption and bloodshed of the Kuomintang, but also felt desperate for the organization, and finally decided to abandon the dark side and join the CCP. Thirty days later, on the first day of the Lunar New Year, he successfully fought back and cooperated with the Communist Party in destroying the "Black Tiger Project" of the Kuomintang, and was happily reunited with his family. The whole story is full of ups and downs, full of tension and excitement, and it also reflects the various sufferings and choices of people in the background of the time.