From many Scandinavian Countries come the stories of The Gjengangers. These are the curses spirits of those who committed suicide. There are two classifications of Gjengangers. The first - a suicide, must find some one to make a sacrifice for them (in order to proceed forward). The second, - are spirits who have left some great task unfinished and need a living person to finish it for them. Once they pick their target, they will haunt the person non-stop until they take on the task. They are often placed into the category of Poltergeists.