Another setting idea and thus entry on the 'Would Like To Do Someday' list.
This one is fairly similar to the concept of the Weird Wars: Home Front idea, arguably it can be said it is aside from some minor details. The main difference would be the backdrop of 1918 London at the end of the First World War and the Spanish Flu epidemic.
Setting Name: Keep The Home Fires Burning
Elevator Pitch: Supernatural horror amidst a plague ravaged 1918 London.
Genre: Weird Wars, Horror, Supernatural, WW1.
Inspiration: Vampyr, Dishonored, Ripper Street, Baltimore: Plague Ships, Weird War I.
Much like Home Front, this is a sort of civvie street counterpart to Weird War I but focused on London. The city's poorer districts are being ravaged by the Spanish Flu, though something much sinister lurks in the gaslamp lit back streets and alleyways. Dark things followed the soldiers home and now haunt the fabled London fogs.
The Weirdness of the Weird War is drawn to the death and fear in London like moths to a flame thanks to the Spanish Flu, though some of it hails from the war years but some stuff dates back to much much earlier. Thanks to the flu creatures like zombies, 'Gloms and ghouls can be encountered in the rougher parts of the metropolis especially in areas where mass graves were dug. Course there would be other beings taking advantage of all the death and suffering.
MI-13, despite in the midst of being wound down after the war, would be tasked with keeping the weirdness under wraps and contained. The Metropolitan and City of London police forces would be increasingly used by MI-13 due to reduction of resources, possibly bringing it into conflict with the Home Office. Either way possible ways of bringing the players in.