An American nurse, Amy Nicholls (Calista Flockhart) haunted by a mistake she made, starts her new job at a dilapidated children's hospital in England. She takes a particular liking to a young girl, Maggie, who has cystic fibrosis. Maggie has an "invisible friend" by the name of Charlotte, who turns out to be a ghost that's haunting the building. But this ghost is violent and she's harmed some of the young children by shattering their bones.
As more supernatural happenings proceed, Amy thinks she's going crazy--until she does some digging and finds out why the ghost is acting out.
The movie drags somewhat, but the production value and special effects are great, particularly the ghost, which looks like something out of Bill Malone's HOUSE ON HAUNTED HILL. The only thing I found truly disturbing was the casting of actress Calista Flockhart as the nurse. She only has one expressions, throughout, which I think is frozen there from the bottox injections...