The leader is a heinous bad guy. He is a mad scientist. In his eyes, all life is just the subject of experiments. At the same time, he is extremely rational and extremely restrained. Although his madness is well known to everyone, he is such a person. He has a soft spot for this victim and thinks that she is the most special and valuable experiment. Therefore, he has always wanted to get her, conduct emotional and memory tests on the human body. An experiment on memory, so he reset and implanted false memories in the victim's mind, turning her into his experiment, his possessions, and his accomplice. During this period, the guide developed emotions for this perfect experiment, special emotions, so much so that he needed tranquilizers to suppress the strangeness and impulse in his heart. The victim may have found herself in the end, maybe not, but she gradually sank.
Concept: Uncontrollable variables