Paranormal Part 3: The Haunted House

Story - Paranormal investigator Kristen Scott is on her way home after being overtaken by sensation that made her hook up with Naomi. When she gets to the door she finds her roommate Alina Lopez outside and scared. Alina explains that she was doing her homework and out of nowhere she saw a ghost in the house. She wants to leave the house and never come back, but Kristen explains that she's the perfect person to take care of this issue since she's a paranormal investigator. They make their way through the house by flashlight as Alina points out where she saw the ghost. Kristen pulls out her electromagnetic field reader to help with the search and as they continue through the house they're startled by the flickering lights. Kristen explains that the ghost is probably getting its energy from the electricity as they continue on. It starts to get cold as Kristen's EMF detector starts to go off signaling that something is near them. A glowing red light starts to come out from beneath the door they're in front of, and they look at their thermal camera and notice a figure there that they can't see. The ghost appears and goes after the girls but then quickly disappears when they start to run away. Kristen knows just what to do, she grabs some salt and makes a circle around herself & Alina for protection. The ghost reappears right in front of them and tries to come after them but can't penetrated the circle. Kristen screams a bible verse at the ghost and right when she finishes it disappears and the girls lay down within the circle and fall asleep. Witches Emily & Riley continue to cast spells over the girls but Emily starts to hesitate. She doesn't think they should be using Wicca to raise demons, that's not what it is about, but Riley isn't having any of it, she casts a spell that makes Emily unable to talk and continues to summon demons. As she does this, the wind blows and breaks the circle of salt that's around Kristen & Alina, allowing Alina to become possessed. How's Kristen going to handle this situation?