影片围绕着心理学家皮特与他被“鬼混”侵扰的病人之间展开，随着病情研究的深入，隐藏在恐惧背后的可怕事件也将渐渐浮出水面。
Adrien Brody
Peter Bower
Sam Neill
Duncan Stewart
Malcolm Kennard
Barry
Chloe Bayliss
Elizabeth Valentine
Bruce Spence
Felix
Robin McLeavy
Barbara Henning
Jenni Baird
Carol Bower
Anna Lise Phillips
Erica George
Olga Miller
Erica George (ghost)
Michael Whalley
Officer Samuels
Matthew Sunderland
Steve, Barry's Brother
George Shevtsov
William Bower
Emma O'Farrell
Evie Bower
Greg Poppleton
Patient
