The Unexplained S02E18 Poltergeist

The name conjures up images of vengeful spirits and chilling manifestations. They have been the subject of some of the most successful and memorable horror movies of all time. But what is a poltergeist are they demons, ghosts or the manifestation of the psychic energy of a living person? POLTERGEIST investigates four very different cases of paranormal incidents looking for answers. In most cases, there is undeniable, physical evidence that something happened the real world was affected. But by what? Probe the minds of the people who have seen poltergeists firsthand and those who are trying to uncover the truth behind them.