Plot Outline: An epileptic girl suffers a breakdown during her first year at university, then decides to seek help from a priest in battling the troubles associated with her strict upbringing.
http://www.imdb.com/title/tt0454931/

Trailer (QT, english subtitled):
http://images.hollywood.com/quicktime/requiem_ifc_t_low.mov

In case anyone was wondering or spotted the similarities, this is based on the story of Anneliese Michel, as was The Exorcism of Emily Rose...

But "Requiem" is much better. Great actors and very intensive.