What is a good housekeeper who does not suppress evil?

Servant. In the movie, housekeeper means servant. The housekeeper has always been responsible for the daily life of Lan Qingfeng and is also very concerned about Lan Qingfeng. She has no background, starting with ordinary people. The film is adapted from Zhang Beihai's novel Xia Yin, which tells the darkest moment of agent Black Lee who returned from the United States in Beiping City before the July 7th Incident.