You're a member of Inout Inc., an international team of professional exorcists. You deal with the most unpredictable cases of exorcism.
This time, you and your team find yourselves in an old mansion in Madyland. According to locals, horrible things have been going on there for years. They remember a young woman who lived there, raising a gravely ill son. Then, she disappeared, and no one has seen the boy since. Many people tried to uncover what happened, but no one has ever returned from the old mansion. Neighbors say, "There's a lot of evil there!"