Devil in Human Being 1949 Directed by Zhaozhang He 人海妖魔
A young girl, Suli, marries a young man, Zhengli. After the marriage, Su Li realizes that her husband is acting strangely, so she follows him to Zheng Li's former home and encounters a series of strange events. Finally, Su Li learns from her nanny, Wang Ma, that the house was haunted three years ago, and that Zheng Li's sister-in-law, Li Zhen, was forced by a ghost to hang herself from a beam, and that Zheng Li's brother came back as a madman. The day after Su Li learns of all this, the bookkeeper Lao Wang is killed again, and next, the nursemaid is also brutally murdered. Suli knows she is in danger and wants to leave immediately, but Zhengli does not agree. Suli is in danger several times, but fortunately saved, and finally finds the real killer, and kills him because he is full of evil!
