The Devil's Workshop

April, 1890. 

London wakes to the shocking news of a mass prison escape. 

Walter Day and the Scotland Yard Murder Squad now face a desperate race against time: if the four convicted murderers aren't recaptured before night settles, they'll vanish into the dark alleys of London's criminal underworld for ever.

And in the midst of this mayhem and fear the city's worst nightmare is realized: Jack the Ripper haunts the streets of London once more . . .