A chilling tale based on true events from the bestselling author of The Ghost Hunters - now a major ITV drama starring Rafe Spall

At the height of the Cold War, officials at the Ministry of Defence conducted a highly secret investigation into unusual events that occurred along a strip of rugged coastline within the Pembrokeshire National Park nicknamed ‘The Broad Haven Triangle’. The events made national headlines: lights and objects hovering in the sky, ghostly figures peering into farmhouse windows, cowering animals, and poltergeists plaguing a terrified family of witnesses.Thirty years later, official files pertaining to these occurrences were finally released for public scrutiny at the National Archives. The disclosure prompted a new witness to come forward to speak of what he knew. His testimony rocked the very foundations of the British Government. This is his story.