One of my favorite ghost stories, it has all the elements: a believable tortured performance by George C. Scott, a recent widower with whom an old house begins to communicate; absolutely chilling, hair-standing on the back of your neck moments; an engrossing mystery that seamlessly ties into the increasingly disturbing hauntings; and, a unhurried pace which heightens the terror. Trust me. Or trust Martin Scorsese. It’s on his list of the 11 scariest horror films of all time.
Also, scariest wheelchair ever.