Satan in disguise

Leo and his family settle in a old mansion. One night they heard a knock on a door and saw a 8 year old boy lying in front of their door. Leo's mom adopted the boy and named him Louis and decided that he will sleep in Leo's room. One night while Leo was sleeping he saw that Louis was laughing and running here in their. Leo told to his mom but they won't believe.On Friday they went to a church when they were trying to go inside it Louis was going completely mad and he was shouting out loud. The Father of the church came outside and when he saw the begin to say " SATAN! SATAN! SATAN!