Set against the backdrop of Victorian York, Lewis ‘Ludley’ Thornhill is a young man condemned to death. However, his fate takes an unexpected twist when he is offered a stay of execution under one condition: he must serve as the hangman for his mysterious older cellmate, Alistair. Over the course of their final days together, Ludley uncovers the truth about Alistair’s past, whilst grappling with the decision of whether to trade this man’s life for his own. An intensely personal journey that is also an exploration of class, mortality and unlikely friendship.