Can someone give me a good summery on my story I'm making?

Okay, so I'm making a story about a 13 year old girl named Kelly Crawford and her friends that are all immortals including her and her sister, all of their lives are in danger of demons and 3 serial kidnappers and 1 serial killer and Kelly gets sick and her life is in even more danger and Kelly's father of who she thought was dead in 2004 is alive....so can anyone give me a good summer, I'm horible at doing summeries.