Welcome agents, to tonight's mission for the Laundry. The year is 2017, and we find ourselves in London during an unusually cold October. Our story begins at the newly established Computational Thaumaturgy Division of the Laundry, then moves to the underground server facility at Thames House, and concludes at an abandoned psychiatric hospital in East London. Tonight, you'll be investigating a digital anomaly that's causing both computational and metaphysical disturbances.