Tower of London 1214...

Maude de Mandeville is dying, murdered for rejecting King John’s advances.

As she stands before Death, the Devil offers a choice: an eternity in Purgatory or the chance to return as a ghost to avenge her murder and to protect her only son.

Over the course of forty turbulent years within the Tower’s mighty walls, Maude realises that the Devil plays a deadly game...

Will she ever gain vengeance for a death she did not deserve?