Have you ever heard unexplained knocking sounds, witnessed objects mysteriously flying across the room, and viewed frightening messages scrawled on the walls? If so, you are not alone. This spooky installment of "The Unexplained" attempts to reveal the truth about hauntings through interviews with psychologists, real-life ghostbusters and those whose lives have been forever changed by encounters with otherworldly terrors. 50 min. Standard; Soundtrack: English Dolby Digital stereo.