Roger Winstanley (Menzies), who for 15 years has been haunted by a recurring nightly nightmare: he is invited to spend the night in an friend's house, and is assigned a room in the tower – a space that fills him with dread though he isn't sure why. In his waking life, Roger is invited to his friend's country house, which bares a striking resemblance to the house of his dreams. Nightmare and reality collide when Roger is invited to stay the night in the room in the tower.

1923. In the heart of an old English college, Edward Williams receives an engraving of an unknown country house with an imposing facade, a sweeping lawn - and, just perhaps, something else.

The inquisitive Mr Wraxhall discovers that a long-dead Swedish nobleman does not lie easy in his tomb.

It's 1881, and Old College, Oxford plays host to three very different academics. But can Bellingham's experiments bring the breath of life to the horrifying bag of bones, Lot No 249?