At the end of the Korean film "Qingsi", the hero recalled that the woman who started calling him said a word! What do you mean! ! Ask for an answer!
After reading it, I understand that when I was arresting thousands of old men, Zhiying said that the teacher committed suicide in order to bring his son back for trial. Zhiying also told his tragic experience to the teacher's son. I think it's the teacher's son who finally remembered that Zhi Ying called him and asked him to come back. Maybe he thinks his father didn't commit suicide, but was killed by Zhi Ying. Zhiying is like this because she wants to liberate herself.