Complex sentence: A famous psychic Dr. Fredrichs, who reveals that Katie is being haunted by a demon that feeds off of negative energy and is intent on tormenting Katie, advises them not to communicate with the demon and to contact demonologist Dr. Johann Averies if needed.
Split into simpler sentences: A famous psychic Dr. Fredrichs, who reveals that Katie is being haunted by a demon that feeds off of negative energy and is intent on tormenting Katie. He advises them not to communicate with the demon and to contact demonologist Dr. Johann Averies if needed.