Sclerosis

It is 1839. Daniel, a young man from London, wakes inside the dark halls of Prussian Brennenburg Castle with almost no memory — only his name, his address in Mayfair, and the knowledge that something is hunting him. He finds a note he wrote to himself: he chose to forget his past deliberately because he could not bear what it had cost him. The note instructs him to descend into the Inner Sanctum and kill a man named Alexander, the castle's baron. It also warns him of a living nightmare in pursuit — one that cannot be fought, only evaded.