Devil inside is the MOST scare movie ever. When I went to the cinema I thaught That this film did not scare me but while I was watching this I scream 5 times. The story is based on the "real" life events of Maria Rossi and her daughter Isabella Rossi. Maria commited a triple murder during an exorcism performed on her. The Catholic Church Became Involved, and she has since been in a Catholic psychiatric hospital in Rome. The film shows a news story and police investigation showing the three members of the clergy Whom she murdered. Her daughter, Isabella, learned of the murders from her father, who died three days after telling her. Twenty years later, Isabella is in the process of filming a documentary About exorcisms and, to find out more about her mother, she visits a school in Rome. When Isabella goes to visit her mother, Maria, in the asylum, she Finds That her mother speaks in different accents and has paintings all over the walls. She has inverted crosses carved into her arms and her bottom lip. That tells Isabella Maria killing a child is against God's will, then lets out an ear-shattering scream. Her mother is crazy, Isabela presece some of exorcism and start to happen a lot of paranormal things.