My heart goes out to the young woman who's father performed exorcisms and tried to perform one on her. 
As a young woman I went to what seemed to be a normal church,the pastor started preforming exorcism. Soon everything was a demon and the women in the Church became the main target for exorcism. You could not trust anyone, if you said anything that "rub another person the wrong way" Or if they just had a "feeling" about you they would turn you into the pastor. It was like living in Salem during the witch hunts.  
I knew it would be hard to leave because my friends and life were there and on top of that I was employed by the church. I realized that my normal Christian church had grown to a destructive cult. I walked out during a meeting never to look back or have any regrets in my decision.  
It's been over 20 years . I thing of myself as a very lucky person some of my friends were not as lucky. Some have died because they did not get the medical help they should have had. Families were destroyed. Friendships torn apart. Some of the people involved just went on to other cult like groups.  
I can not even imagine what todays guest has been through. She too will be a survivor. It may take time , hard word and a lot of tears but she will make it.