This is about a show that happened 25 years ago this Halloween, and is still horrifying.
On Saturday 31 October 1992, between 9.25pm and 11pm, BBC One played a hoax with four well known BBC presenters appearing on the show. It had the appearance of a straightforward documentary and offered only subtle clues that it was an elaborate hoax. That night 11 million people watched a one-off show called Ghostwatch, which appeared to be broadcast live from a house in Northolt, troubled by a malevolent presence that manifested itself by banging on to the water pipes.
What the BBC had intended to be nothing more alarming than a horror movie, petrified a country and would eventually lead to accusations that it was responsible for a death, along with more than 20,000 phone call complaints, one induced labor, and thousands of angry letters about the show.