London, 1889. When the residents of 221B Baker Street leave town for the weekend to solve one of their most famous cases, no one is left to clear a poor housekeeper’s name of a crime she didn’t commit. Well, no one except for their neighbors at 224B…

Rudyard Funn and his equally miserable sister Antigone run a failing funeral parlour, where they get the body in the coffin in the ground on time. But one day they find a new competitor. With their dogsbody Georgie and a mouse called Madeleine, they are taking drastic steps to stay in business...

Even Greater London, 1887. In this vast metropolis, Inspector Archibald Fleet and journalist Clara Entwhistle investigate a murder, only to find themselves at the centre of a conspiracy of impossible proportions.