The Hospital of Hell

This story is about a group of 3 people, who decided to go and visit this abandoned psychiatric hospital, and stay there for a few days, because they were told it was haunted, so they got it in their mind that they would stay, it should be fun. They soon begin to realize that this in fact not the best idea to be staying there, and it ends up becoming the biggest fight for their lives. Will they make it out alive? Or will this hospital claim them, as it has done to everyone else?