Karen is a young woman on her own, is making the best of her orphaned state by working in Madame Damnable's high-quality bordello. Trouble erupts one night when a badly injured girl arrives at their door, begging sanctuary, followed by the man who holds her indenture, and who has a machine that can take over anyone's mind and control their actions. And as if that wasn't bad enough, the next night brings a body dumped in their rubbish heap--a streetwalker who has been brutally murdered. I found this a lot of fun -- not fantasy, in and of itself, but steampunk and Elizabeth Bear, so I'm cool with it.