Mark Davies has no memory of what happened when he fell from the King’s Cross train. But ever since the accident he has been haunted by terrifying nightmares, and he feels compelled to return again and again to the station.

 Yet Mark is not alone. Over the span of decades, many strange and violent incidents have occurred on the King’s Cross line. Unexplained acts of brutality. Random acts of violence. An unseen force that drives people to kill.