Rabbit is framed for murder and on the run

D.I. Rabbit's been chasing Victorian London's criminals for as long as he can remember but he's not as young as he was and his heart keeps stopping at inopportune moments so he is given a fresh faced assistant straight out of university.

Rabbit, Strauss and Mabel are on the case of a mysterious killer who takes the guise of the Brick Man, a mythical figure from London folklore. And Lydia emerges from the shadows with designs on Mabel.

Rabbit, Strauss and Mabel are assigned to protect the visiting Crown Prince of Bulgaria. But there's a sniper on the loose

Flora faces the gallows and Rabbit must save her - but there's the small matter of an armed siege at a match factory to deal with first

Gang warfare is raging in the East End. Wisbech sends Strauss and Mabel undercover, whilst Rabbit finds himself ostracised from the case due to his age.