Fiasco is a story-based RPG system that was featured on Geek & Sundry's "Tabletop" with Wil Wheaton (
https://www.youtube.com/watch?v=WXJxQ0NbFtk)
In this Fiasco, we will be using a playset based on the Bloodhounds of London campaign setting for the Trail of Cthulhu RPG from Pelgrane Press. The setting is Depression-era London. The story centers around some strange and peculiar books making their way around the city. Investigators, cultists, thugs - everyone seems to be interested. Sounds like the start to a perfect Fiasco.