A brutal murder in the Lake District.
A double assassination in a secret lab in London’s West End.
Seemingly unconnected, unexpected links between the gruesome crimes emerge and it’s up to DI Kelly Porter to follow the trail – all the way to the capital.
Back amongst old colleagues and forced to work alongside her calculating ex, DCI Matt Carter, Kelly must untangle a web of deceit that stretches into the highest echelons of power. A place where secrets and lies are currency and no obstacle is insurmountable.