The great clock of Big Ben chimed midnight, its sonorous toll echoing through the rain-slicked, cobbled streets of London. A chilling cry tore through the damp, autumn air, silencing the rhythmic clatter of a passing carriage. Within moments, the scene was swarming with police.

There, sprawled on the cold stones, lay Lady Willemina Winchester, daughter of a prominent Duke. Her elegant grey silk gown, trimmed with garnet, was soaked in crimson, flowing from two precise, horrifying punctures at her jugular. Her face was frozen in a mask of pure terror, a sight that would haunt the city for weeks to come.

This was the first of many. Soon, London's papers screamed headlines of 'The Midnight Killer,' a phantom preying on young women, leaving behind the same gruesome signature: two holes, and a missing lock of hair. Fear, like a suffocating fog, settled over the capital, giving rise to whispers of vampires and creatures of the night. But Detective Harry Macmillan, a man of science, knew better. This was no beast of legend, but a human monster, and he swore he would find him.