In late Victorian England, private enquiry agents Cyrus Barker and Thomas Llewelyn find themselves in the middle of the deadly chaos when powerful forces align to take over London's criminal underworld.

>The sudden collapse of a railway tunnel in the East End of London kills dozens and shuts down services all over the city. Meanwhile, a mysterious beggar calling herself "Dutch" guides Barker and Llewelyn to an attempt by a powerful aristocrat to take over London's criminal underworld. With a missing heiress and a riot at a women's shelter acting as distractions designed to stop the duo from getting to the truth, Barker must relentlessly fight to reach the trust while Llewelyn wonders how a simple beggar woman can be the catalyst for such destruction.