The Nun (2005 film)

The Nun Spanish La Monja is a 2005 Spanish horror film directed by Luis De La Madrid.

Eighteen years later, the pond is drained. The vengeful soul of the nun is thus freed from her watery prison, and leaves to wreak havoc on the lives of the girls who were her mortal downfall.A young girl, Eve goes to the boarding school, after her mother the pregnant girl Ursula wanted to cleanse is murdered, to find out what is going on. There, she meets the other two survivors, and together with some of Eves friends, they defend themselves from Ursulas spirit whilst desperately trying to figure out how to banish the nun once and for all. ........

Source: Wikipedia