This British movie is about deception, betrayal and delusion. Superb acting, however, if you watch this movie from an educational point-of-view you will learn a lot about how some people can be deluded and the lengths they can go to for their sinister purposes (in this case, possession).
The victim in this movie is seduced and manipulated through her weakness and the cost is oh-so-high!
[youtube=http://www.youtube.com/watch?v=AruRpjQquQQ]