A new bride destroys the happiness of her marriage when she takes on the jealous personality of her husband's first wife: madness - or possession? A 6yr old sets candles alight by staring at them across a room: a clever trick - or a poltergeist? A woman claims she has been repeatedly raped by an invisible demon: fantasy - or curse? These are among the many astounding real-life cases investigated by the author for this controversial book.