The lives of a prisoner on death row, a journalist looking for a story, a vicar in a sleepy English town and a maths tutor trapped in a cellar intertwine in a deadly way.

Condemned prisoner Jefferson Grieff has a mission for journalist Beth Davenport, and vicar Harry Watling faces an impossible choice.

As Harry’s dilemma worsens, the fate of his family hangs in the balance - but he’s determined to do the right thing. Meanwhile, Beth Davenport meets one of Jefferson Grieff’s helpers in the outside world, who delivers a chilling warning. In the cellar, Janice’s desperation grows.