What is the detailed scene of the movie "Hell" 19?

With inner simplicity and courage, Chunyu finally met a psychological teacher on the18th floor. It turns out that all this is a trap set by the psychology teacher. This psychological teacher is the one with real psychological problems. After hypnotizing these four people, he wants to find a pure person to go with him to the 19 floor. Finally, Chunyu was rescued by the police, and finally found that her sisters were not really dead, but they all had deep psychological shadows.